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source: vbox/trunk/src/VBox/Main/DisplayImpl.cpp@ 25860

Last change on this file since 25860 was 25860, checked in by vboxsync, 14 years ago
Main: cleanup: get rid of VirtualBoxBaseProto, move AutoCaller/Span* classes out of VirtualBoxBaseProto class scope and into separate header; move CombinedProgress into separate header (it's only used by Console any more)
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 110.0 KB

Line
1	/* $Id: DisplayImpl.cpp 25860 2010-01-15 13:27:26Z vboxsync $ */
2
3	/** @file
4	*
5	* VirtualBox COM class implementation
6	*/
7
8	/*
9	* Copyright (C) 2006-2008 Sun Microsystems, Inc.
10	*
11	* This file is part of VirtualBox Open Source Edition (OSE), as
12	* available from http://www.virtualbox.org. This file is free software;
13	* you can redistribute it and/or modify it under the terms of the GNU
14	* General Public License (GPL) as published by the Free Software
15	* Foundation, in version 2 as it comes in the "COPYING" file of the
16	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
17	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
18	*
19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
20	* Clara, CA 95054 USA or visit http://www.sun.com if you need
21	* additional information or have any questions.
22	*/
23
24	#include "DisplayImpl.h"
25	#include "ConsoleImpl.h"
26	#include "ConsoleVRDPServer.h"
27	#include "VMMDev.h"
28
29	#include "AutoCaller.h"
30	#include "Logging.h"
31
32	#include <iprt/semaphore.h>
33	#include <iprt/thread.h>
34	#include <iprt/asm.h>
35
36	#include <VBox/pdmdrv.h>
37	#ifdef DEBUG /* for VM_ASSERT_EMT(). */
38	# include <VBox/vm.h>
39	#endif
40
41	#ifdef VBOX_WITH_VIDEOHWACCEL
42	# include <VBox/VBoxVideo.h>
43	#endif
44
45	#include <VBox/com/array.h>
46	#include <png.h>
47
48	/**
49	* Display driver instance data.
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 Connector;
61	#if defined(VBOX_WITH_VIDEOHWACCEL)
62	/** VBVA callbacks */
63	PPDMDDISPLAYVBVACALLBACKS pVBVACallbacks;
64	#endif
65	} DRVMAINDISPLAY, *PDRVMAINDISPLAY;
66
67	/** Converts PDMIDISPLAYCONNECTOR pointer to a DRVMAINDISPLAY pointer. */
68	#define PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface) ( (PDRVMAINDISPLAY) ((uintptr_t)pInterface - RT_OFFSETOF(DRVMAINDISPLAY, Connector)) )
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	cbNew = RT_ALIGN_32(cbNew, 4096) + 4096;
220
221	void *pNew = RTMemRealloc(pCtx->pu8PNG, cbNew);
222	if (!pNew)
223	{
224	pCtx->rc = VERR_NO_MEMORY;
225	return;
226	}
227
228	pCtx->pu8PNG = (uint8_t *)pNew;
229	pCtx->cbAllocated = cbNew;
230	}
231
232	memcpy(pCtx->pu8PNG + pCtx->cbPNG, p, cb);
233	pCtx->cbPNG += cb;
234	}
235	}
236
237	static void PNGAPI png_output_flush_fn(png_structp png_ptr)
238	{
239	NOREF(png_ptr);
240	/* Do nothing. */
241	}
242
243	static int displayMakePNG(uint8_t *pu8Data, uint32_t cx, uint32_t cy,
244	uint8_t *ppu8PNG, uint32_t pcbPNG, uint32_t pcxPNG, uint32_t pcyPNG)
245	{
246	int rc = VINF_SUCCESS;
247
248	uint8_t * volatile pu8Bitmap = NULL; /* gcc setjmp warning */
249	uint32_t volatile cbBitmap = 0; /* gcc setjmp warning */
250	uint32_t volatile cxBitmap = 0; /* gcc setjmp warning */
251	uint32_t volatile cyBitmap = 0; /* gcc setjmp warning */
252
253	if (cx < kMaxSizePNG && cy < kMaxSizePNG)
254	{
255	/* Save unscaled screenshot. */
256	pu8Bitmap = pu8Data;
257	cbBitmap = cx * 4 * cy;
258	cxBitmap = cx;
259	cyBitmap = cy;
260	}
261	else
262	{
263	/* Large screenshot, scale. */
264	if (cx > cy)
265	{
266	cxBitmap = kMaxSizePNG;
267	cyBitmap = (kMaxSizePNG * cy) / cx;
268	}
269	else
270	{
271	cyBitmap = kMaxSizePNG;
272	cxBitmap = (kMaxSizePNG * cx) / cy;
273	}
274
275	cbBitmap = cxBitmap * 4 * cyBitmap;
276
277	pu8Bitmap = (uint8_t *)RTMemAlloc(cbBitmap);
278
279	if (pu8Bitmap)
280	{
281	uint8_t *dst = pu8Bitmap;
282	uint8_t *src = pu8Data;
283	int dstX = 0;
284	int dstY = 0;
285	int srcX = 0;
286	int srcY = 0;
287	int dstW = cxBitmap;
288	int dstH = cyBitmap;
289	int srcW = cx;
290	int srcH = cy;
291	gdImageCopyResampled (dst,
292	src,
293	dstX, dstY,
294	srcX, srcY,
295	dstW, dstH, srcW, srcH);
296	}
297	else
298	{
299	rc = VERR_NO_MEMORY;
300	}
301	}
302
303	LogFlowFunc(("%dx%d -> %dx%d\n", cx, cy, cxBitmap, cyBitmap));
304
305	if (RT_SUCCESS(rc))
306	{
307	png_bytep row_pointers = (png_bytep )RTMemAlloc(cyBitmap * sizeof(png_bytep));
308	if (row_pointers)
309	{
310	png_infop info_ptr = NULL;
311	png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
312	(png_voidp)NULL, /* error/warning context pointer */
313	(png_error_ptr)NULL, /* error function */
314	(png_error_ptr)NULL /* warning function */);
315	if (png_ptr)
316	{
317	info_ptr = png_create_info_struct(png_ptr);
318	if (info_ptr)
319	{
320	if (!setjmp(png_jmpbuf(png_ptr)))
321	{
322	PNGWriteCtx ctx;
323	ctx.pu8PNG = NULL;
324	ctx.cbPNG = 0;
325	ctx.cbAllocated = 0;
326	ctx.rc = VINF_SUCCESS;
327
328	png_set_write_fn(png_ptr,
329	(voidp)&ctx,
330	png_write_data_fn,
331	png_output_flush_fn);
332
333	png_set_IHDR(png_ptr, info_ptr,
334	cxBitmap, cyBitmap,
335	8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
336	PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
337
338	png_bytep row_pointer = (png_bytep)pu8Bitmap;
339	unsigned i = 0;
340	for (; i < cyBitmap; i++, row_pointer += cxBitmap * 4)
341	{
342	row_pointers[i] = row_pointer;
343	}
344	png_set_rows(png_ptr, info_ptr, &row_pointers[0]);
345
346	png_write_info(png_ptr, info_ptr);
347	png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
348	png_set_bgr(png_ptr);
349
350	if (info_ptr->valid & PNG_INFO_IDAT)
351	png_write_image(png_ptr, info_ptr->row_pointers);
352
353	png_write_end(png_ptr, info_ptr);
354
355	rc = ctx.rc;
356
357	if (RT_SUCCESS(rc))
358	{
359	*ppu8PNG = ctx.pu8PNG;
360	*pcbPNG = ctx.cbPNG;
361	*pcxPNG = cxBitmap;
362	*pcyPNG = cyBitmap;
363	LogFlowFunc(("PNG %d bytes, bitmap %d bytes\n", ctx.cbPNG, cbBitmap));
364	}
365	}
366	else
367	{
368	rc = VERR_GENERAL_FAILURE; /* Something within libpng. */
369	}
370	}
371	else
372	{
373	rc = VERR_NO_MEMORY;
374	}
375
376	png_destroy_write_struct(&png_ptr, info_ptr ? &info_ptr
377	: (png_infopp)NULL);
378	}
379	else
380	{
381	rc = VERR_NO_MEMORY;
382	}
383
384	RTMemFree(row_pointers);
385	}
386	else
387	{
388	rc = VERR_NO_MEMORY;
389	}
390	}
391
392	if (pu8Bitmap && pu8Bitmap != pu8Data)
393	{
394	RTMemFree(pu8Bitmap);
395	}
396
397	return rc;
398
399	}
400
401	DECLCALLBACK(void)
402	Display::displaySSMSaveScreenshot(PSSMHANDLE pSSM, void *pvUser)
403	{
404	Display that = static_cast<Display>(pvUser);
405
406	/* 32bpp small RGB image. */
407	uint8_t *pu8Thumbnail = NULL;
408	uint32_t cbThumbnail = 0;
409	uint32_t cxThumbnail = 0;
410	uint32_t cyThumbnail = 0;
411
412	/* PNG screenshot. */
413	uint8_t *pu8PNG = NULL;
414	uint32_t cbPNG = 0;
415	uint32_t cxPNG = 0;
416	uint32_t cyPNG = 0;
417
418	Console::SafeVMPtr pVM (that->mParent);
419	if (SUCCEEDED(pVM.rc()))
420	{
421	/* Query RGB bitmap. */
422	uint8_t *pu8Data = NULL;
423	size_t cbData = 0;
424	uint32_t cx = 0;
425	uint32_t cy = 0;
426
427	/* SSM code is executed on EMT(0), therefore no need to use VMR3ReqCallWait. */
428	#ifdef VBOX_WITH_OLD_VBVA_LOCK
429	int rc = Display::displayTakeScreenshotEMT(that, &pu8Data, &cbData, &cx, &cy);
430	#else
431	int rc = that->mpDrv->pUpPort->pfnTakeScreenshot (that->mpDrv->pUpPort, &pu8Data, &cbData, &cx, &cy);
432	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
433
434	if (RT_SUCCESS(rc))
435	{
436	/* Prepare a small thumbnail and a PNG screenshot. */
437	displayMakeThumbnail(pu8Data, cx, cy, &pu8Thumbnail, &cbThumbnail, &cxThumbnail, &cyThumbnail);
438	displayMakePNG(pu8Data, cx, cy, &pu8PNG, &cbPNG, &cxPNG, &cyPNG);
439
440	/* This can be called from any thread. */
441	that->mpDrv->pUpPort->pfnFreeScreenshot (that->mpDrv->pUpPort, pu8Data);
442	}
443	}
444	else
445	{
446	LogFunc(("Failed to get VM pointer 0x%x\n", pVM.rc()));
447	}
448
449	/* Regardless of rc, save what is available:
450	* Data format:
451	* uint32_t cBlocks;
452	* [blocks]
453	*
454	* Each block is:
455	* uint32_t cbBlock; if 0 - no 'block data'.
456	* uint32_t typeOfBlock; 0 - 32bpp RGB bitmap, 1 - PNG, ignored if 'cbBlock' is 0.
457	* [block data]
458	*
459	* Block data for bitmap and PNG:
460	* uint32_t cx;
461	* uint32_t cy;
462	* [image data]
463	*/
464	SSMR3PutU32(pSSM, 2); /* Write thumbnail and PNG screenshot. */
465
466	/* First block. */
467	SSMR3PutU32(pSSM, cbThumbnail + 2 * sizeof (uint32_t));
468	SSMR3PutU32(pSSM, 0); /* Block type: thumbnail. */
469
470	if (cbThumbnail)
471	{
472	SSMR3PutU32(pSSM, cxThumbnail);
473	SSMR3PutU32(pSSM, cyThumbnail);
474	SSMR3PutMem(pSSM, pu8Thumbnail, cbThumbnail);
475	}
476
477	/* Second block. */
478	SSMR3PutU32(pSSM, cbPNG + 2 * sizeof (uint32_t));
479	SSMR3PutU32(pSSM, 1); /* Block type: png. */
480
481	if (cbPNG)
482	{
483	SSMR3PutU32(pSSM, cxPNG);
484	SSMR3PutU32(pSSM, cyPNG);
485	SSMR3PutMem(pSSM, pu8PNG, cbPNG);
486	}
487
488	RTMemFree(pu8PNG);
489	RTMemFree(pu8Thumbnail);
490	}
491
492	DECLCALLBACK(int)
493	Display::displaySSMLoadScreenshot(PSSMHANDLE pSSM, void *pvUser, uint32_t uVersion, uint32_t uPass)
494	{
495	Display that = static_cast<Display>(pvUser);
496
497	if (uVersion != sSSMDisplayScreenshotVer)
498	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
499	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
500
501	/* Skip data. */
502	uint32_t cBlocks;
503	int rc = SSMR3GetU32(pSSM, &cBlocks);
504	AssertRCReturn(rc, rc);
505
506	for (uint32_t i = 0; i < cBlocks; i++)
507	{
508	uint32_t cbBlock;
509	rc = SSMR3GetU32(pSSM, &cbBlock);
510	AssertRCBreak(rc);
511
512	uint32_t typeOfBlock;
513	rc = SSMR3GetU32(pSSM, &typeOfBlock);
514	AssertRCBreak(rc);
515
516	LogFlowFunc(("[%d] type %d, size %d bytes\n", i, typeOfBlock, cbBlock));
517
518	if (cbBlock != 0)
519	{
520	rc = SSMR3Skip(pSSM, cbBlock);
521	AssertRCBreak(rc);
522	}
523	}
524
525	return rc;
526	}
527
528	/**
529	* Save/Load some important guest state
530	*/
531	DECLCALLBACK(void)
532	Display::displaySSMSave(PSSMHANDLE pSSM, void *pvUser)
533	{
534	Display that = static_cast<Display>(pvUser);
535
536	SSMR3PutU32(pSSM, that->mcMonitors);
537	for (unsigned i = 0; i < that->mcMonitors; i++)
538	{
539	SSMR3PutU32(pSSM, that->maFramebuffers[i].u32Offset);
540	SSMR3PutU32(pSSM, that->maFramebuffers[i].u32MaxFramebufferSize);
541	SSMR3PutU32(pSSM, that->maFramebuffers[i].u32InformationSize);
542	}
543	}
544
545	DECLCALLBACK(int)
546	Display::displaySSMLoad(PSSMHANDLE pSSM, void *pvUser, uint32_t uVersion, uint32_t uPass)
547	{
548	Display that = static_cast<Display>(pvUser);
549
550	if (uVersion != sSSMDisplayVer)
551	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
552	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
553
554	uint32_t cMonitors;
555	int rc = SSMR3GetU32(pSSM, &cMonitors);
556	if (cMonitors != that->mcMonitors)
557	return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Number of monitors changed (%d->%d)!"), cMonitors, that->mcMonitors);
558
559	for (uint32_t i = 0; i < cMonitors; i++)
560	{
561	SSMR3GetU32(pSSM, &that->maFramebuffers[i].u32Offset);
562	SSMR3GetU32(pSSM, &that->maFramebuffers[i].u32MaxFramebufferSize);
563	SSMR3GetU32(pSSM, &that->maFramebuffers[i].u32InformationSize);
564	}
565
566	return VINF_SUCCESS;
567	}
568
569	/**
570	* Initializes the display object.
571	*
572	* @returns COM result indicator
573	* @param parent handle of our parent object
574	* @param qemuConsoleData address of common console data structure
575	*/
576	HRESULT Display::init (Console *aParent)
577	{
578	LogFlowThisFunc(("aParent=%p\n", aParent));
579
580	ComAssertRet (aParent, E_INVALIDARG);
581
582	/* Enclose the state transition NotReady->InInit->Ready */
583	AutoInitSpan autoInitSpan(this);
584	AssertReturn(autoInitSpan.isOk(), E_FAIL);
585
586	unconst(mParent) = aParent;
587
588	// by default, we have an internal framebuffer which is
589	// NULL, i.e. a black hole for no display output
590	mFramebufferOpened = false;
591
592	ULONG ul;
593	mParent->machine()->COMGETTER(MonitorCount)(&ul);
594	mcMonitors = ul;
595
596	for (ul = 0; ul < mcMonitors; ul++)
597	{
598	maFramebuffers[ul].u32Offset = 0;
599	maFramebuffers[ul].u32MaxFramebufferSize = 0;
600	maFramebuffers[ul].u32InformationSize = 0;
601
602	maFramebuffers[ul].pFramebuffer = NULL;
603
604	maFramebuffers[ul].xOrigin = 0;
605	maFramebuffers[ul].yOrigin = 0;
606
607	maFramebuffers[ul].w = 0;
608	maFramebuffers[ul].h = 0;
609
610	maFramebuffers[ul].pHostEvents = NULL;
611
612	maFramebuffers[ul].u32ResizeStatus = ResizeStatus_Void;
613
614	maFramebuffers[ul].fDefaultFormat = false;
615
616	memset (&maFramebuffers[ul].dirtyRect, 0 , sizeof (maFramebuffers[ul].dirtyRect));
617	memset (&maFramebuffers[ul].pendingResize, 0 , sizeof (maFramebuffers[ul].pendingResize));
618	#ifdef VBOX_WITH_HGSMI
619	maFramebuffers[ul].fVBVAEnabled = false;
620	maFramebuffers[ul].cVBVASkipUpdate = 0;
621	memset (&maFramebuffers[ul].vbvaSkippedRect, 0, sizeof (maFramebuffers[ul].vbvaSkippedRect));
622	maFramebuffers[ul].pVBVAHostFlags = NULL;
623	#endif /* VBOX_WITH_HGSMI */
624	}
625
626	mParent->RegisterCallback (this);
627
628	/* Confirm a successful initialization */
629	autoInitSpan.setSucceeded();
630
631	return S_OK;
632	}
633
634	/**
635	* Uninitializes the instance and sets the ready flag to FALSE.
636	* Called either from FinalRelease() or by the parent when it gets destroyed.
637	*/
638	void Display::uninit()
639	{
640	LogFlowThisFunc(("\n"));
641
642	/* Enclose the state transition Ready->InUninit->NotReady */
643	AutoUninitSpan autoUninitSpan(this);
644	if (autoUninitSpan.uninitDone())
645	return;
646
647	ULONG ul;
648	for (ul = 0; ul < mcMonitors; ul++)
649	maFramebuffers[ul].pFramebuffer = NULL;
650
651	if (mParent)
652	mParent->UnregisterCallback (this);
653
654	unconst(mParent).setNull();
655
656	if (mpDrv)
657	mpDrv->pDisplay = NULL;
658
659	mpDrv = NULL;
660	mpVMMDev = NULL;
661	mfVMMDevInited = true;
662	}
663
664	/**
665	* Register the SSM methods. Called by the power up thread to be able to
666	* pass pVM
667	*/
668	int Display::registerSSM(PVM pVM)
669	{
670	int rc = SSMR3RegisterExternal(pVM, "DisplayData", 0, sSSMDisplayVer,
671	mcMonitors * sizeof(uint32_t) * 3 + sizeof(uint32_t),
672	NULL, NULL, NULL,
673	NULL, displaySSMSave, NULL,
674	NULL, displaySSMLoad, NULL, this);
675
676	AssertRCReturn(rc, rc);
677
678	/*
679	* Register loaders for old saved states where iInstance was 3 * sizeof(uint32_t *).
680	*/
681	rc = SSMR3RegisterExternal(pVM, "DisplayData", 12 /uInstance/, sSSMDisplayVer, 0 /cbGuess/,
682	NULL, NULL, NULL,
683	NULL, NULL, NULL,
684	NULL, displaySSMLoad, NULL, this);
685	AssertRCReturn(rc, rc);
686
687	rc = SSMR3RegisterExternal(pVM, "DisplayData", 24 /uInstance/, sSSMDisplayVer, 0 /cbGuess/,
688	NULL, NULL, NULL,
689	NULL, NULL, NULL,
690	NULL, displaySSMLoad, NULL, this);
691	AssertRCReturn(rc, rc);
692
693	/* uInstance is an arbitrary value greater than 1024. Such a value will ensure a quick seek in saved state file. */
694	rc = SSMR3RegisterExternal(pVM, "DisplayScreenshot", 1100 /uInstance/, sSSMDisplayScreenshotVer, 0 /cbGuess/,
695	NULL, NULL, NULL,
696	NULL, displaySSMSaveScreenshot, NULL,
697	NULL, displaySSMLoadScreenshot, NULL, this);
698
699	AssertRCReturn(rc, rc);
700
701	return VINF_SUCCESS;
702	}
703
704	// IConsoleCallback method
705	STDMETHODIMP Display::OnStateChange(MachineState_T machineState)
706	{
707	if ( machineState == MachineState_Running
708	\|\| machineState == MachineState_Teleporting
709	\|\| machineState == MachineState_LiveSnapshotting
710	)
711	{
712	LogFlowFunc(("Machine is running.\n"));
713
714	mfMachineRunning = true;
715	}
716	else
717	mfMachineRunning = false;
718
719	return S_OK;
720	}
721
722	// public methods only for internal purposes
723	/////////////////////////////////////////////////////////////////////////////
724
725	/**
726	* @thread EMT
727	*/
728	static int callFramebufferResize (IFramebuffer *pFramebuffer, unsigned uScreenId,
729	ULONG pixelFormat, void *pvVRAM,
730	uint32_t bpp, uint32_t cbLine,
731	int w, int h)
732	{
733	Assert (pFramebuffer);
734
735	/* Call the framebuffer to try and set required pixelFormat. */
736	BOOL finished = TRUE;
737
738	pFramebuffer->RequestResize (uScreenId, pixelFormat, (BYTE *) pvVRAM,
739	bpp, cbLine, w, h, &finished);
740
741	if (!finished)
742	{
743	LogFlowFunc (("External framebuffer wants us to wait!\n"));
744	return VINF_VGA_RESIZE_IN_PROGRESS;
745	}
746
747	return VINF_SUCCESS;
748	}
749
750	/**
751	* Handles display resize event.
752	* Disables access to VGA device;
753	* calls the framebuffer RequestResize method;
754	* if framebuffer resizes synchronously,
755	* updates the display connector data and enables access to the VGA device.
756	*
757	* @param w New display width
758	* @param h New display height
759	*
760	* @thread EMT
761	*/
762	int Display::handleDisplayResize (unsigned uScreenId, uint32_t bpp, void *pvVRAM,
763	uint32_t cbLine, int w, int h)
764	{
765	LogRel (("Display::handleDisplayResize(): uScreenId = %d, pvVRAM=%p "
766	"w=%d h=%d bpp=%d cbLine=0x%X\n",
767	uScreenId, pvVRAM, w, h, bpp, cbLine));
768
769	/* If there is no framebuffer, this call is not interesting. */
770	if ( uScreenId >= mcMonitors
771	\|\| maFramebuffers[uScreenId].pFramebuffer.isNull())
772	{
773	return VINF_SUCCESS;
774	}
775
776	mLastAddress = pvVRAM;
777	mLastBytesPerLine = cbLine;
778	mLastBitsPerPixel = bpp,
779	mLastWidth = w;
780	mLastHeight = h;
781
782	ULONG pixelFormat;
783
784	switch (bpp)
785	{
786	case 32:
787	case 24:
788	case 16:
789	pixelFormat = FramebufferPixelFormat_FOURCC_RGB;
790	break;
791	default:
792	pixelFormat = FramebufferPixelFormat_Opaque;
793	bpp = cbLine = 0;
794	break;
795	}
796
797	/* Atomically set the resize status before calling the framebuffer. The new InProgress status will
798	* disable access to the VGA device by the EMT thread.
799	*/
800	bool f = ASMAtomicCmpXchgU32 (&maFramebuffers[uScreenId].u32ResizeStatus,
801	ResizeStatus_InProgress, ResizeStatus_Void);
802	if (!f)
803	{
804	/* This could be a result of the screenshot taking call Display::TakeScreenShot:
805	* if the framebuffer is processing the resize request and GUI calls the TakeScreenShot
806	* and the guest has reprogrammed the virtual VGA devices again so a new resize is required.
807	*
808	* Save the resize information and return the pending status code.
809	*
810	* Note: the resize information is only accessed on EMT so no serialization is required.
811	*/
812	LogRel (("Display::handleDisplayResize(): Warning: resize postponed.\n"));
813
814	maFramebuffers[uScreenId].pendingResize.fPending = true;
815	maFramebuffers[uScreenId].pendingResize.pixelFormat = pixelFormat;
816	maFramebuffers[uScreenId].pendingResize.pvVRAM = pvVRAM;
817	maFramebuffers[uScreenId].pendingResize.bpp = bpp;
818	maFramebuffers[uScreenId].pendingResize.cbLine = cbLine;
819	maFramebuffers[uScreenId].pendingResize.w = w;
820	maFramebuffers[uScreenId].pendingResize.h = h;
821
822	return VINF_VGA_RESIZE_IN_PROGRESS;
823	}
824
825	int rc = callFramebufferResize (maFramebuffers[uScreenId].pFramebuffer, uScreenId,
826	pixelFormat, pvVRAM, bpp, cbLine, w, h);
827	if (rc == VINF_VGA_RESIZE_IN_PROGRESS)
828	{
829	/* Immediately return to the caller. ResizeCompleted will be called back by the
830	* GUI thread. The ResizeCompleted callback will change the resize status from
831	* InProgress to UpdateDisplayData. The latter status will be checked by the
832	* display timer callback on EMT and all required adjustments will be done there.
833	*/
834	return rc;
835	}
836
837	/* Set the status so the 'handleResizeCompleted' would work. */
838	f = ASMAtomicCmpXchgU32 (&maFramebuffers[uScreenId].u32ResizeStatus,
839	ResizeStatus_UpdateDisplayData, ResizeStatus_InProgress);
840	AssertRelease(f);NOREF(f);
841
842	AssertRelease(!maFramebuffers[uScreenId].pendingResize.fPending);
843
844	/* The method also unlocks the framebuffer. */
845	handleResizeCompletedEMT();
846
847	return VINF_SUCCESS;
848	}
849
850	/**
851	* Framebuffer has been resized.
852	* Read the new display data and unlock the framebuffer.
853	*
854	* @thread EMT
855	*/
856	void Display::handleResizeCompletedEMT (void)
857	{
858	LogFlowFunc(("\n"));
859
860	unsigned uScreenId;
861	for (uScreenId = 0; uScreenId < mcMonitors; uScreenId++)
862	{
863	DISPLAYFBINFO *pFBInfo = &maFramebuffers[uScreenId];
864
865	/* Try to into non resizing state. */
866	bool f = ASMAtomicCmpXchgU32 (&pFBInfo->u32ResizeStatus, ResizeStatus_Void, ResizeStatus_UpdateDisplayData);
867
868	if (f == false)
869	{
870	/* This is not the display that has completed resizing. */
871	continue;
872	}
873
874	/* Check whether a resize is pending for this framebuffer. */
875	if (pFBInfo->pendingResize.fPending)
876	{
877	/* Reset the condition, call the display resize with saved data and continue.
878	*
879	* Note: handleDisplayResize can call handleResizeCompletedEMT back,
880	* but infinite recursion is not possible, because when the handleResizeCompletedEMT
881	* is called, the pFBInfo->pendingResize.fPending is equal to false.
882	*/
883	pFBInfo->pendingResize.fPending = false;
884	handleDisplayResize (uScreenId, pFBInfo->pendingResize.bpp, pFBInfo->pendingResize.pvVRAM,
885	pFBInfo->pendingResize.cbLine, pFBInfo->pendingResize.w, pFBInfo->pendingResize.h);
886	continue;
887	}
888
889	if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN && !pFBInfo->pFramebuffer.isNull())
890	{
891	/* Primary framebuffer has completed the resize. Update the connector data for VGA device. */
892	updateDisplayData();
893
894	/* Check the framebuffer pixel format to setup the rendering in VGA device. */
895	BOOL usesGuestVRAM = FALSE;
896	pFBInfo->pFramebuffer->COMGETTER(UsesGuestVRAM) (&usesGuestVRAM);
897
898	pFBInfo->fDefaultFormat = (usesGuestVRAM == FALSE);
899
900	mpDrv->pUpPort->pfnSetRenderVRAM (mpDrv->pUpPort, pFBInfo->fDefaultFormat);
901	}
902
903	#ifdef DEBUG_sunlover
904	if (!stam)
905	{
906	/* protect mpVM */
907	Console::SafeVMPtr pVM (mParent);
908	AssertComRC (pVM.rc());
909
910	STAM_REG(pVM, &StatDisplayRefresh, STAMTYPE_PROFILE, "/PROF/Display/Refresh", STAMUNIT_TICKS_PER_CALL, "Time spent in EMT for display updates.");
911	stam = 1;
912	}
913	#endif /* DEBUG_sunlover */
914
915	/* Inform VRDP server about the change of display parameters. */
916	LogFlowFunc (("Calling VRDP\n"));
917	mParent->consoleVRDPServer()->SendResize();
918	}
919	}
920
921	static void checkCoordBounds (int px, int py, int pw, int ph, int cx, int cy)
922	{
923	/* Correct negative x and y coordinates. */
924	if (*px < 0)
925	{
926	px += pw; /* Compute xRight which is also the new width. */
927
928	pw = (px < 0)? 0: *px;
929
930	*px = 0;
931	}
932
933	if (*py < 0)
934	{
935	py += ph; /* Compute xBottom, which is also the new height. */
936
937	ph = (py < 0)? 0: *py;
938
939	*py = 0;
940	}
941
942	/* Also check if coords are greater than the display resolution. */
943	if (px + pw > cx)
944	{
945	pw = cx > px? cx - *px: 0;
946	}
947
948	if (py + ph > cy)
949	{
950	ph = cy > py? cy - *py: 0;
951	}
952	}
953
954	unsigned mapCoordsToScreen(DISPLAYFBINFO pInfos, unsigned cInfos, int px, int py, int pw, int *ph)
955	{
956	DISPLAYFBINFO *pInfo = pInfos;
957	unsigned uScreenId;
958	LogSunlover (("mapCoordsToScreen: %d,%d %dx%d\n", px, py, pw, ph));
959	for (uScreenId = 0; uScreenId < cInfos; uScreenId++, pInfo++)
960	{
961	LogSunlover ((" [%d] %d,%d %dx%d\n", uScreenId, pInfo->xOrigin, pInfo->yOrigin, pInfo->w, pInfo->h));
962	if ( (pInfo->xOrigin <= px && px < pInfo->xOrigin + (int)pInfo->w)
963	&& (pInfo->yOrigin <= py && py < pInfo->yOrigin + (int)pInfo->h))
964	{
965	/* The rectangle belongs to the screen. Correct coordinates. */
966	*px -= pInfo->xOrigin;
967	*py -= pInfo->yOrigin;
968	LogSunlover ((" -> %d,%d", px, py));
969	break;
970	}
971	}
972	if (uScreenId == cInfos)
973	{
974	/* Map to primary screen. */
975	uScreenId = 0;
976	}
977	LogSunlover ((" scr %d\n", uScreenId));
978	return uScreenId;
979	}
980
981
982	/**
983	* Handles display update event.
984	*
985	* @param x Update area x coordinate
986	* @param y Update area y coordinate
987	* @param w Update area width
988	* @param h Update area height
989	*
990	* @thread EMT
991	*/
992	void Display::handleDisplayUpdate (int x, int y, int w, int h)
993	{
994	#ifdef VBOX_WITH_OLD_VBVA_LOCK
995	/*
996	* Always runs under either VBVA lock or, for HGSMI, DevVGA lock.
997	* Safe to use VBVA vars and take the framebuffer lock.
998	*/
999	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1000
1001	#ifdef DEBUG_sunlover
1002	LogFlowFunc (("%d,%d %dx%d (%d,%d)\n",
1003	x, y, w, h, mpDrv->Connector.cx, mpDrv->Connector.cy));
1004	#endif /* DEBUG_sunlover */
1005
1006	unsigned uScreenId = mapCoordsToScreen(maFramebuffers, mcMonitors, &x, &y, &w, &h);
1007
1008	#ifdef DEBUG_sunlover
1009	LogFlowFunc (("%d,%d %dx%d (checked)\n", x, y, w, h));
1010	#endif /* DEBUG_sunlover */
1011
1012	IFramebuffer *pFramebuffer = maFramebuffers[uScreenId].pFramebuffer;
1013
1014	// if there is no framebuffer, this call is not interesting
1015	if (pFramebuffer == NULL)
1016	return;
1017
1018	pFramebuffer->Lock();
1019
1020	if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN)
1021	checkCoordBounds (&x, &y, &w, &h, mpDrv->Connector.cx, mpDrv->Connector.cy);
1022	else
1023	checkCoordBounds (&x, &y, &w, &h, maFramebuffers[uScreenId].w,
1024	maFramebuffers[uScreenId].h);
1025
1026	if (w != 0 && h != 0)
1027	pFramebuffer->NotifyUpdate(x, y, w, h);
1028
1029	pFramebuffer->Unlock();
1030
1031	#ifndef VBOX_WITH_HGSMI
1032	if (!mfVideoAccelEnabled)
1033	{
1034	#else
1035	if (!mfVideoAccelEnabled && !maFramebuffers[uScreenId].fVBVAEnabled)
1036	{
1037	#endif /* VBOX_WITH_HGSMI */
1038	/* When VBVA is enabled, the VRDP server is informed in the VideoAccelFlush.
1039	* Inform the server here only if VBVA is disabled.
1040	*/
1041	if (maFramebuffers[uScreenId].u32ResizeStatus == ResizeStatus_Void)
1042	mParent->consoleVRDPServer()->SendUpdateBitmap(uScreenId, x, y, w, h);
1043	}
1044	}
1045
1046	typedef struct _VBVADIRTYREGION
1047	{
1048	/* Copies of object's pointers used by vbvaRgn functions. */
1049	DISPLAYFBINFO *paFramebuffers;
1050	unsigned cMonitors;
1051	Display *pDisplay;
1052	PPDMIDISPLAYPORT pPort;
1053
1054	} VBVADIRTYREGION;
1055
1056	static void vbvaRgnInit (VBVADIRTYREGION prgn, DISPLAYFBINFO paFramebuffers, unsigned cMonitors, Display *pd, PPDMIDISPLAYPORT pp)
1057	{
1058	prgn->paFramebuffers = paFramebuffers;
1059	prgn->cMonitors = cMonitors;
1060	prgn->pDisplay = pd;
1061	prgn->pPort = pp;
1062
1063	unsigned uScreenId;
1064	for (uScreenId = 0; uScreenId < cMonitors; uScreenId++)
1065	{
1066	DISPLAYFBINFO *pFBInfo = &prgn->paFramebuffers[uScreenId];
1067
1068	memset (&pFBInfo->dirtyRect, 0, sizeof (pFBInfo->dirtyRect));
1069	}
1070	}
1071
1072	static void vbvaRgnDirtyRect (VBVADIRTYREGION prgn, unsigned uScreenId, VBVACMDHDR phdr)
1073	{
1074	LogSunlover (("x = %d, y = %d, w = %d, h = %d\n",
1075	phdr->x, phdr->y, phdr->w, phdr->h));
1076
1077	/*
1078	* Here update rectangles are accumulated to form an update area.
1079	* @todo
1080	* Now the simpliest method is used which builds one rectangle that
1081	* includes all update areas. A bit more advanced method can be
1082	* employed here. The method should be fast however.
1083	*/
1084	if (phdr->w == 0 \|\| phdr->h == 0)
1085	{
1086	/* Empty rectangle. */
1087	return;
1088	}
1089
1090	int32_t xRight = phdr->x + phdr->w;
1091	int32_t yBottom = phdr->y + phdr->h;
1092
1093	DISPLAYFBINFO *pFBInfo = &prgn->paFramebuffers[uScreenId];
1094
1095	if (pFBInfo->dirtyRect.xRight == 0)
1096	{
1097	/* This is the first rectangle to be added. */
1098	pFBInfo->dirtyRect.xLeft = phdr->x;
1099	pFBInfo->dirtyRect.yTop = phdr->y;
1100	pFBInfo->dirtyRect.xRight = xRight;
1101	pFBInfo->dirtyRect.yBottom = yBottom;
1102	}
1103	else
1104	{
1105	/* Adjust region coordinates. */
1106	if (pFBInfo->dirtyRect.xLeft > phdr->x)
1107	{
1108	pFBInfo->dirtyRect.xLeft = phdr->x;
1109	}
1110
1111	if (pFBInfo->dirtyRect.yTop > phdr->y)
1112	{
1113	pFBInfo->dirtyRect.yTop = phdr->y;
1114	}
1115
1116	if (pFBInfo->dirtyRect.xRight < xRight)
1117	{
1118	pFBInfo->dirtyRect.xRight = xRight;
1119	}
1120
1121	if (pFBInfo->dirtyRect.yBottom < yBottom)
1122	{
1123	pFBInfo->dirtyRect.yBottom = yBottom;
1124	}
1125	}
1126
1127	if (pFBInfo->fDefaultFormat)
1128	{
1129	//@todo pfnUpdateDisplayRect must take the vram offset parameter for the framebuffer
1130	prgn->pPort->pfnUpdateDisplayRect (prgn->pPort, phdr->x, phdr->y, phdr->w, phdr->h);
1131	prgn->pDisplay->handleDisplayUpdate (phdr->x + pFBInfo->xOrigin,
1132	phdr->y + pFBInfo->yOrigin, phdr->w, phdr->h);
1133	}
1134
1135	return;
1136	}
1137
1138	static void vbvaRgnUpdateFramebuffer (VBVADIRTYREGION *prgn, unsigned uScreenId)
1139	{
1140	DISPLAYFBINFO *pFBInfo = &prgn->paFramebuffers[uScreenId];
1141
1142	uint32_t w = pFBInfo->dirtyRect.xRight - pFBInfo->dirtyRect.xLeft;
1143	uint32_t h = pFBInfo->dirtyRect.yBottom - pFBInfo->dirtyRect.yTop;
1144
1145	if (!pFBInfo->fDefaultFormat && pFBInfo->pFramebuffer && w != 0 && h != 0)
1146	{
1147	//@todo pfnUpdateDisplayRect must take the vram offset parameter for the framebuffer
1148	prgn->pPort->pfnUpdateDisplayRect (prgn->pPort, pFBInfo->dirtyRect.xLeft, pFBInfo->dirtyRect.yTop, w, h);
1149	prgn->pDisplay->handleDisplayUpdate (pFBInfo->dirtyRect.xLeft + pFBInfo->xOrigin,
1150	pFBInfo->dirtyRect.yTop + pFBInfo->yOrigin, w, h);
1151	}
1152	}
1153
1154	static void vbvaSetMemoryFlags (VBVAMEMORY *pVbvaMemory,
1155	bool fVideoAccelEnabled,
1156	bool fVideoAccelVRDP,
1157	uint32_t fu32SupportedOrders,
1158	DISPLAYFBINFO *paFBInfos,
1159	unsigned cFBInfos)
1160	{
1161	if (pVbvaMemory)
1162	{
1163	/* This called only on changes in mode. So reset VRDP always. */
1164	uint32_t fu32Flags = VBVA_F_MODE_VRDP_RESET;
1165
1166	if (fVideoAccelEnabled)
1167	{
1168	fu32Flags \|= VBVA_F_MODE_ENABLED;
1169
1170	if (fVideoAccelVRDP)
1171	{
1172	fu32Flags \|= VBVA_F_MODE_VRDP \| VBVA_F_MODE_VRDP_ORDER_MASK;
1173
1174	pVbvaMemory->fu32SupportedOrders = fu32SupportedOrders;
1175	}
1176	}
1177
1178	pVbvaMemory->fu32ModeFlags = fu32Flags;
1179	}
1180
1181	unsigned uScreenId;
1182	for (uScreenId = 0; uScreenId < cFBInfos; uScreenId++)
1183	{
1184	if (paFBInfos[uScreenId].pHostEvents)
1185	{
1186	paFBInfos[uScreenId].pHostEvents->fu32Events \|= VBOX_VIDEO_INFO_HOST_EVENTS_F_VRDP_RESET;
1187	}
1188	}
1189	}
1190
1191	#ifdef VBOX_WITH_HGSMI
1192	static void vbvaSetMemoryFlagsHGSMI (unsigned uScreenId,
1193	uint32_t fu32SupportedOrders,
1194	bool fVideoAccelVRDP,
1195	DISPLAYFBINFO *pFBInfo)
1196	{
1197	LogFlowFunc(("HGSMI[%d]: %p\n", uScreenId, pFBInfo->pVBVAHostFlags));
1198
1199	if (pFBInfo->pVBVAHostFlags)
1200	{
1201	uint32_t fu32HostEvents = VBOX_VIDEO_INFO_HOST_EVENTS_F_VRDP_RESET;
1202
1203	if (pFBInfo->fVBVAEnabled)
1204	{
1205	fu32HostEvents \|= VBVA_F_MODE_ENABLED;
1206
1207	if (fVideoAccelVRDP)
1208	{
1209	fu32HostEvents \|= VBVA_F_MODE_VRDP;
1210	}
1211	}
1212
1213	ASMAtomicOrU32(&pFBInfo->pVBVAHostFlags->u32HostEvents, fu32HostEvents);
1214	ASMAtomicWriteU32(&pFBInfo->pVBVAHostFlags->u32SupportedOrders, fu32SupportedOrders);
1215
1216	LogFlowFunc((" fu32HostEvents = 0x%08X, fu32SupportedOrders = 0x%08X\n", fu32HostEvents, fu32SupportedOrders));
1217	}
1218	}
1219
1220	static void vbvaSetMemoryFlagsAllHGSMI (uint32_t fu32SupportedOrders,
1221	bool fVideoAccelVRDP,
1222	DISPLAYFBINFO *paFBInfos,
1223	unsigned cFBInfos)
1224	{
1225	unsigned uScreenId;
1226
1227	for (uScreenId = 0; uScreenId < cFBInfos; uScreenId++)
1228	{
1229	vbvaSetMemoryFlagsHGSMI(uScreenId, fu32SupportedOrders, fVideoAccelVRDP, &paFBInfos[uScreenId]);
1230	}
1231	}
1232	#endif /* VBOX_WITH_HGSMI */
1233
1234	bool Display::VideoAccelAllowed (void)
1235	{
1236	return true;
1237	}
1238
1239	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1240	int Display::vbvaLock(void)
1241	{
1242	return RTCritSectEnter(&mVBVALock);
1243	}
1244
1245	void Display::vbvaUnlock(void)
1246	{
1247	RTCritSectLeave(&mVBVALock);
1248	}
1249	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1250
1251	/**
1252	* @thread EMT
1253	*/
1254	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1255	int Display::VideoAccelEnable (bool fEnable, VBVAMEMORY *pVbvaMemory)
1256	{
1257	int rc;
1258	vbvaLock();
1259	rc = videoAccelEnable (fEnable, pVbvaMemory);
1260	vbvaUnlock();
1261	return rc;
1262	}
1263	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1264
1265	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1266	int Display::videoAccelEnable (bool fEnable, VBVAMEMORY *pVbvaMemory)
1267	#else
1268	int Display::VideoAccelEnable (bool fEnable, VBVAMEMORY *pVbvaMemory)
1269	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1270	{
1271	int rc = VINF_SUCCESS;
1272
1273	/* Called each time the guest wants to use acceleration,
1274	* or when the VGA device disables acceleration,
1275	* or when restoring the saved state with accel enabled.
1276	*
1277	* VGA device disables acceleration on each video mode change
1278	* and on reset.
1279	*
1280	* Guest enabled acceleration at will. And it has to enable
1281	* acceleration after a mode change.
1282	*/
1283	LogFlowFunc (("mfVideoAccelEnabled = %d, fEnable = %d, pVbvaMemory = %p\n",
1284	mfVideoAccelEnabled, fEnable, pVbvaMemory));
1285
1286	/* Strictly check parameters. Callers must not pass anything in the case. */
1287	Assert((fEnable && pVbvaMemory) \|\| (!fEnable && pVbvaMemory == NULL));
1288
1289	if (!VideoAccelAllowed ())
1290	{
1291	return VERR_NOT_SUPPORTED;
1292	}
1293
1294	/*
1295	* Verify that the VM is in running state. If it is not,
1296	* then this must be postponed until it goes to running.
1297	*/
1298	if (!mfMachineRunning)
1299	{
1300	Assert (!mfVideoAccelEnabled);
1301
1302	LogFlowFunc (("Machine is not yet running.\n"));
1303
1304	if (fEnable)
1305	{
1306	mfPendingVideoAccelEnable = fEnable;
1307	mpPendingVbvaMemory = pVbvaMemory;
1308	}
1309
1310	return rc;
1311	}
1312
1313	/* Check that current status is not being changed */
1314	if (mfVideoAccelEnabled == fEnable)
1315	{
1316	return rc;
1317	}
1318
1319	if (mfVideoAccelEnabled)
1320	{
1321	/* Process any pending orders and empty the VBVA ring buffer. */
1322	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1323	videoAccelFlush ();
1324	#else
1325	VideoAccelFlush ();
1326	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1327	}
1328
1329	if (!fEnable && mpVbvaMemory)
1330	{
1331	mpVbvaMemory->fu32ModeFlags &= ~VBVA_F_MODE_ENABLED;
1332	}
1333
1334	/* Safety precaution. There is no more VBVA until everything is setup! */
1335	mpVbvaMemory = NULL;
1336	mfVideoAccelEnabled = false;
1337
1338	/* Update entire display. */
1339	if (maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].u32ResizeStatus == ResizeStatus_Void)
1340	{
1341	mpDrv->pUpPort->pfnUpdateDisplayAll(mpDrv->pUpPort);
1342	}
1343
1344	/* Everything OK. VBVA status can be changed. */
1345
1346	/* Notify the VMMDev, which saves VBVA status in the saved state,
1347	* and needs to know current status.
1348	*/
1349	PPDMIVMMDEVPORT pVMMDevPort = mParent->getVMMDev()->getVMMDevPort ();
1350
1351	if (pVMMDevPort)
1352	{
1353	pVMMDevPort->pfnVBVAChange (pVMMDevPort, fEnable);
1354	}
1355
1356	if (fEnable)
1357	{
1358	mpVbvaMemory = pVbvaMemory;
1359	mfVideoAccelEnabled = true;
1360
1361	/* Initialize the hardware memory. */
1362	vbvaSetMemoryFlags (mpVbvaMemory, mfVideoAccelEnabled, mfVideoAccelVRDP, mfu32SupportedOrders, maFramebuffers, mcMonitors);
1363	mpVbvaMemory->off32Data = 0;
1364	mpVbvaMemory->off32Free = 0;
1365
1366	memset (mpVbvaMemory->aRecords, 0, sizeof (mpVbvaMemory->aRecords));
1367	mpVbvaMemory->indexRecordFirst = 0;
1368	mpVbvaMemory->indexRecordFree = 0;
1369
1370	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1371	mfu32PendingVideoAccelDisable = false;
1372	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1373
1374	LogRel(("VBVA: Enabled.\n"));
1375	}
1376	else
1377	{
1378	LogRel(("VBVA: Disabled.\n"));
1379	}
1380
1381	LogFlowFunc (("VideoAccelEnable: rc = %Rrc.\n", rc));
1382
1383	return rc;
1384	}
1385
1386	#ifdef VBOX_WITH_VRDP
1387	/* Called always by one VRDP server thread. Can be thread-unsafe.
1388	*/
1389	void Display::VideoAccelVRDP (bool fEnable)
1390	{
1391	LogFlowFunc(("fEnable = %d\n", fEnable));
1392
1393	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1394	vbvaLock();
1395	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1396
1397	int c = fEnable?
1398	ASMAtomicIncS32 (&mcVideoAccelVRDPRefs):
1399	ASMAtomicDecS32 (&mcVideoAccelVRDPRefs);
1400
1401	Assert (c >= 0);
1402
1403	if (c == 0)
1404	{
1405	/* The last client has disconnected, and the accel can be
1406	* disabled.
1407	*/
1408	Assert (fEnable == false);
1409
1410	mfVideoAccelVRDP = false;
1411	mfu32SupportedOrders = 0;
1412
1413	vbvaSetMemoryFlags (mpVbvaMemory, mfVideoAccelEnabled, mfVideoAccelVRDP, mfu32SupportedOrders, maFramebuffers, mcMonitors);
1414	#ifdef VBOX_WITH_HGSMI
1415	/* Here is VRDP-IN thread. Process the request in vbvaUpdateBegin under DevVGA lock on an EMT. */
1416	ASMAtomicIncU32(&mu32UpdateVBVAFlags);
1417	#endif /* VBOX_WITH_HGSMI */
1418
1419	LogRel(("VBVA: VRDP acceleration has been disabled.\n"));
1420	}
1421	else if ( c == 1
1422	&& !mfVideoAccelVRDP)
1423	{
1424	/* The first client has connected. Enable the accel.
1425	*/
1426	Assert (fEnable == true);
1427
1428	mfVideoAccelVRDP = true;
1429	/* Supporting all orders. */
1430	mfu32SupportedOrders = ~0;
1431
1432	vbvaSetMemoryFlags (mpVbvaMemory, mfVideoAccelEnabled, mfVideoAccelVRDP, mfu32SupportedOrders, maFramebuffers, mcMonitors);
1433	#ifdef VBOX_WITH_HGSMI
1434	/* Here is VRDP-IN thread. Process the request in vbvaUpdateBegin under DevVGA lock on an EMT. */
1435	ASMAtomicIncU32(&mu32UpdateVBVAFlags);
1436	#endif /* VBOX_WITH_HGSMI */
1437
1438	LogRel(("VBVA: VRDP acceleration has been requested.\n"));
1439	}
1440	else
1441	{
1442	/* A client is connected or disconnected but there is no change in the
1443	* accel state. It remains enabled.
1444	*/
1445	Assert (mfVideoAccelVRDP == true);
1446	}
1447	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1448	vbvaUnlock();
1449	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1450	}
1451	#endif /* VBOX_WITH_VRDP */
1452
1453	static bool vbvaVerifyRingBuffer (VBVAMEMORY *pVbvaMemory)
1454	{
1455	return true;
1456	}
1457
1458	static void vbvaFetchBytes (VBVAMEMORY pVbvaMemory, uint8_t pu8Dst, uint32_t cbDst)
1459	{
1460	if (cbDst >= VBVA_RING_BUFFER_SIZE)
1461	{
1462	AssertMsgFailed (("cbDst = 0x%08X, ring buffer size 0x%08X", cbDst, VBVA_RING_BUFFER_SIZE));
1463	return;
1464	}
1465
1466	uint32_t u32BytesTillBoundary = VBVA_RING_BUFFER_SIZE - pVbvaMemory->off32Data;
1467	uint8_t *src = &pVbvaMemory->au8RingBuffer[pVbvaMemory->off32Data];
1468	int32_t i32Diff = cbDst - u32BytesTillBoundary;
1469
1470	if (i32Diff <= 0)
1471	{
1472	/* Chunk will not cross buffer boundary. */
1473	memcpy (pu8Dst, src, cbDst);
1474	}
1475	else
1476	{
1477	/* Chunk crosses buffer boundary. */
1478	memcpy (pu8Dst, src, u32BytesTillBoundary);
1479	memcpy (pu8Dst + u32BytesTillBoundary, &pVbvaMemory->au8RingBuffer[0], i32Diff);
1480	}
1481
1482	/* Advance data offset. */
1483	pVbvaMemory->off32Data = (pVbvaMemory->off32Data + cbDst) % VBVA_RING_BUFFER_SIZE;
1484
1485	return;
1486	}
1487
1488
1489	static bool vbvaPartialRead (uint8_t *ppu8, uint32_t pcb, uint32_t cbRecord, VBVAMEMORY *pVbvaMemory)
1490	{
1491	uint8_t *pu8New;
1492
1493	LogFlow(("MAIN::DisplayImpl::vbvaPartialRead: p = %p, cb = %d, cbRecord 0x%08X\n",
1494	ppu8, pcb, cbRecord));
1495
1496	if (*ppu8)
1497	{
1498	Assert (*pcb);
1499	pu8New = (uint8_t )RTMemRealloc (ppu8, cbRecord);
1500	}
1501	else
1502	{
1503	Assert (!*pcb);
1504	pu8New = (uint8_t *)RTMemAlloc (cbRecord);
1505	}
1506
1507	if (!pu8New)
1508	{
1509	/* Memory allocation failed, fail the function. */
1510	Log(("MAIN::vbvaPartialRead: failed to (re)alocate memory for partial record!!! cbRecord 0x%08X\n",
1511	cbRecord));
1512
1513	if (*ppu8)
1514	{
1515	RTMemFree (*ppu8);
1516	}
1517
1518	*ppu8 = NULL;
1519	*pcb = 0;
1520
1521	return false;
1522	}
1523
1524	/* Fetch data from the ring buffer. */
1525	vbvaFetchBytes (pVbvaMemory, pu8New + pcb, cbRecord - pcb);
1526
1527	*ppu8 = pu8New;
1528	*pcb = cbRecord;
1529
1530	return true;
1531	}
1532
1533	/* For contiguous chunks just return the address in the buffer.
1534	* For crossing boundary - allocate a buffer from heap.
1535	*/
1536	bool Display::vbvaFetchCmd (VBVACMDHDR *ppHdr, uint32_t pcbCmd)
1537	{
1538	uint32_t indexRecordFirst = mpVbvaMemory->indexRecordFirst;
1539	uint32_t indexRecordFree = mpVbvaMemory->indexRecordFree;
1540
1541	#ifdef DEBUG_sunlover
1542	LogFlowFunc (("first = %d, free = %d\n",
1543	indexRecordFirst, indexRecordFree));
1544	#endif /* DEBUG_sunlover */
1545
1546	if (!vbvaVerifyRingBuffer (mpVbvaMemory))
1547	{
1548	return false;
1549	}
1550
1551	if (indexRecordFirst == indexRecordFree)
1552	{
1553	/* No records to process. Return without assigning output variables. */
1554	return true;
1555	}
1556
1557	VBVARECORD *pRecord = &mpVbvaMemory->aRecords[indexRecordFirst];
1558
1559	#ifdef DEBUG_sunlover
1560	LogFlowFunc (("cbRecord = 0x%08X\n", pRecord->cbRecord));
1561	#endif /* DEBUG_sunlover */
1562
1563	uint32_t cbRecord = pRecord->cbRecord & ~VBVA_F_RECORD_PARTIAL;
1564
1565	if (mcbVbvaPartial)
1566	{
1567	/* There is a partial read in process. Continue with it. */
1568
1569	Assert (mpu8VbvaPartial);
1570
1571	LogFlowFunc (("continue partial record mcbVbvaPartial = %d cbRecord 0x%08X, first = %d, free = %d\n",
1572	mcbVbvaPartial, pRecord->cbRecord, indexRecordFirst, indexRecordFree));
1573
1574	if (cbRecord > mcbVbvaPartial)
1575	{
1576	/* New data has been added to the record. */
1577	if (!vbvaPartialRead (&mpu8VbvaPartial, &mcbVbvaPartial, cbRecord, mpVbvaMemory))
1578	{
1579	return false;
1580	}
1581	}
1582
1583	if (!(pRecord->cbRecord & VBVA_F_RECORD_PARTIAL))
1584	{
1585	/* The record is completed by guest. Return it to the caller. */
1586	ppHdr = (VBVACMDHDR )mpu8VbvaPartial;
1587	*pcbCmd = mcbVbvaPartial;
1588
1589	mpu8VbvaPartial = NULL;
1590	mcbVbvaPartial = 0;
1591
1592	/* Advance the record index. */
1593	mpVbvaMemory->indexRecordFirst = (indexRecordFirst + 1) % VBVA_MAX_RECORDS;
1594
1595	#ifdef DEBUG_sunlover
1596	LogFlowFunc (("partial done ok, data = %d, free = %d\n",
1597	mpVbvaMemory->off32Data, mpVbvaMemory->off32Free));
1598	#endif /* DEBUG_sunlover */
1599	}
1600
1601	return true;
1602	}
1603
1604	/* A new record need to be processed. */
1605	if (pRecord->cbRecord & VBVA_F_RECORD_PARTIAL)
1606	{
1607	/* Current record is being written by guest. '=' is important here. */
1608	if (cbRecord >= VBVA_RING_BUFFER_SIZE - VBVA_RING_BUFFER_THRESHOLD)
1609	{
1610	/* Partial read must be started. */
1611	if (!vbvaPartialRead (&mpu8VbvaPartial, &mcbVbvaPartial, cbRecord, mpVbvaMemory))
1612	{
1613	return false;
1614	}
1615
1616	LogFlowFunc (("started partial record mcbVbvaPartial = 0x%08X cbRecord 0x%08X, first = %d, free = %d\n",
1617	mcbVbvaPartial, pRecord->cbRecord, indexRecordFirst, indexRecordFree));
1618	}
1619
1620	return true;
1621	}
1622
1623	/* Current record is complete. If it is not empty, process it. */
1624	if (cbRecord)
1625	{
1626	/* The size of largest contiguos chunk in the ring biffer. */
1627	uint32_t u32BytesTillBoundary = VBVA_RING_BUFFER_SIZE - mpVbvaMemory->off32Data;
1628
1629	/* The ring buffer pointer. */
1630	uint8_t *au8RingBuffer = &mpVbvaMemory->au8RingBuffer[0];
1631
1632	/* The pointer to data in the ring buffer. */
1633	uint8_t *src = &au8RingBuffer[mpVbvaMemory->off32Data];
1634
1635	/* Fetch or point the data. */
1636	if (u32BytesTillBoundary >= cbRecord)
1637	{
1638	/* The command does not cross buffer boundary. Return address in the buffer. */
1639	ppHdr = (VBVACMDHDR )src;
1640
1641	/* Advance data offset. */
1642	mpVbvaMemory->off32Data = (mpVbvaMemory->off32Data + cbRecord) % VBVA_RING_BUFFER_SIZE;
1643	}
1644	else
1645	{
1646	/* The command crosses buffer boundary. Rare case, so not optimized. */
1647	uint8_t dst = (uint8_t )RTMemAlloc (cbRecord);
1648
1649	if (!dst)
1650	{
1651	LogFlowFunc (("could not allocate %d bytes from heap!!!\n", cbRecord));
1652	mpVbvaMemory->off32Data = (mpVbvaMemory->off32Data + cbRecord) % VBVA_RING_BUFFER_SIZE;
1653	return false;
1654	}
1655
1656	vbvaFetchBytes (mpVbvaMemory, dst, cbRecord);
1657
1658	ppHdr = (VBVACMDHDR )dst;
1659
1660	#ifdef DEBUG_sunlover
1661	LogFlowFunc (("Allocated from heap %p\n", dst));
1662	#endif /* DEBUG_sunlover */
1663	}
1664	}
1665
1666	*pcbCmd = cbRecord;
1667
1668	/* Advance the record index. */
1669	mpVbvaMemory->indexRecordFirst = (indexRecordFirst + 1) % VBVA_MAX_RECORDS;
1670
1671	#ifdef DEBUG_sunlover
1672	LogFlowFunc (("done ok, data = %d, free = %d\n",
1673	mpVbvaMemory->off32Data, mpVbvaMemory->off32Free));
1674	#endif /* DEBUG_sunlover */
1675
1676	return true;
1677	}
1678
1679	void Display::vbvaReleaseCmd (VBVACMDHDR *pHdr, int32_t cbCmd)
1680	{
1681	uint8_t *au8RingBuffer = mpVbvaMemory->au8RingBuffer;
1682
1683	if ( (uint8_t *)pHdr >= au8RingBuffer
1684	&& (uint8_t *)pHdr < &au8RingBuffer[VBVA_RING_BUFFER_SIZE])
1685	{
1686	/* The pointer is inside ring buffer. Must be continuous chunk. */
1687	Assert (VBVA_RING_BUFFER_SIZE - ((uint8_t *)pHdr - au8RingBuffer) >= cbCmd);
1688
1689	/* Do nothing. */
1690
1691	Assert (!mpu8VbvaPartial && mcbVbvaPartial == 0);
1692	}
1693	else
1694	{
1695	/* The pointer is outside. It is then an allocated copy. */
1696
1697	#ifdef DEBUG_sunlover
1698	LogFlowFunc (("Free heap %p\n", pHdr));
1699	#endif /* DEBUG_sunlover */
1700
1701	if ((uint8_t *)pHdr == mpu8VbvaPartial)
1702	{
1703	mpu8VbvaPartial = NULL;
1704	mcbVbvaPartial = 0;
1705	}
1706	else
1707	{
1708	Assert (!mpu8VbvaPartial && mcbVbvaPartial == 0);
1709	}
1710
1711	RTMemFree (pHdr);
1712	}
1713
1714	return;
1715	}
1716
1717
1718	/**
1719	* Called regularly on the DisplayRefresh timer.
1720	* Also on behalf of guest, when the ring buffer is full.
1721	*
1722	* @thread EMT
1723	*/
1724	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1725	void Display::VideoAccelFlush (void)
1726	{
1727	vbvaLock();
1728	videoAccelFlush();
1729	vbvaUnlock();
1730	}
1731	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1732
1733	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1734	/* Under VBVA lock. DevVGA is not taken. */
1735	void Display::videoAccelFlush (void)
1736	#else
1737	void Display::VideoAccelFlush (void)
1738	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1739	{
1740	#ifdef DEBUG_sunlover_2
1741	LogFlowFunc (("mfVideoAccelEnabled = %d\n", mfVideoAccelEnabled));
1742	#endif /* DEBUG_sunlover_2 */
1743
1744	if (!mfVideoAccelEnabled)
1745	{
1746	Log(("Display::VideoAccelFlush: called with disabled VBVA!!! Ignoring.\n"));
1747	return;
1748	}
1749
1750	/* Here VBVA is enabled and we have the accelerator memory pointer. */
1751	Assert(mpVbvaMemory);
1752
1753	#ifdef DEBUG_sunlover_2
1754	LogFlowFunc (("indexRecordFirst = %d, indexRecordFree = %d, off32Data = %d, off32Free = %d\n",
1755	mpVbvaMemory->indexRecordFirst, mpVbvaMemory->indexRecordFree, mpVbvaMemory->off32Data, mpVbvaMemory->off32Free));
1756	#endif /* DEBUG_sunlover_2 */
1757
1758	/* Quick check for "nothing to update" case. */
1759	if (mpVbvaMemory->indexRecordFirst == mpVbvaMemory->indexRecordFree)
1760	{
1761	return;
1762	}
1763
1764	/* Process the ring buffer */
1765	unsigned uScreenId;
1766	#ifndef VBOX_WITH_OLD_VBVA_LOCK
1767	for (uScreenId = 0; uScreenId < mcMonitors; uScreenId++)
1768	{
1769	if (!maFramebuffers[uScreenId].pFramebuffer.isNull())
1770	{
1771	maFramebuffers[uScreenId].pFramebuffer->Lock ();
1772	}
1773	}
1774	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1775
1776	/* Initialize dirty rectangles accumulator. */
1777	VBVADIRTYREGION rgn;
1778	vbvaRgnInit (&rgn, maFramebuffers, mcMonitors, this, mpDrv->pUpPort);
1779
1780	for (;;)
1781	{
1782	VBVACMDHDR *phdr = NULL;
1783	uint32_t cbCmd = ~0;
1784
1785	/* Fetch the command data. */
1786	if (!vbvaFetchCmd (&phdr, &cbCmd))
1787	{
1788	Log(("Display::VideoAccelFlush: unable to fetch command. off32Data = %d, off32Free = %d. Disabling VBVA!!!\n",
1789	mpVbvaMemory->off32Data, mpVbvaMemory->off32Free));
1790
1791	/* Disable VBVA on those processing errors. */
1792	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1793	videoAccelEnable (false, NULL);
1794	#else
1795	VideoAccelEnable (false, NULL);
1796	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1797
1798	break;
1799	}
1800
1801	if (cbCmd == uint32_t(~0))
1802	{
1803	/* No more commands yet in the queue. */
1804	break;
1805	}
1806
1807	if (cbCmd != 0)
1808	{
1809	#ifdef DEBUG_sunlover
1810	LogFlowFunc (("hdr: cbCmd = %d, x=%d, y=%d, w=%d, h=%d\n",
1811	cbCmd, phdr->x, phdr->y, phdr->w, phdr->h));
1812	#endif /* DEBUG_sunlover */
1813
1814	VBVACMDHDR hdrSaved = *phdr;
1815
1816	int x = phdr->x;
1817	int y = phdr->y;
1818	int w = phdr->w;
1819	int h = phdr->h;
1820
1821	uScreenId = mapCoordsToScreen(maFramebuffers, mcMonitors, &x, &y, &w, &h);
1822
1823	phdr->x = (int16_t)x;
1824	phdr->y = (int16_t)y;
1825	phdr->w = (uint16_t)w;
1826	phdr->h = (uint16_t)h;
1827
1828	DISPLAYFBINFO *pFBInfo = &maFramebuffers[uScreenId];
1829
1830	if (pFBInfo->u32ResizeStatus == ResizeStatus_Void)
1831	{
1832	/* Handle the command.
1833	*
1834	* Guest is responsible for updating the guest video memory.
1835	* The Windows guest does all drawing using Eng*.
1836	*
1837	* For local output, only dirty rectangle information is used
1838	* to update changed areas.
1839	*
1840	* Dirty rectangles are accumulated to exclude overlapping updates and
1841	* group small updates to a larger one.
1842	*/
1843
1844	/* Accumulate the update. */
1845	vbvaRgnDirtyRect (&rgn, uScreenId, phdr);
1846
1847	/* Forward the command to VRDP server. */
1848	mParent->consoleVRDPServer()->SendUpdate (uScreenId, phdr, cbCmd);
1849
1850	*phdr = hdrSaved;
1851	}
1852	}
1853
1854	vbvaReleaseCmd (phdr, cbCmd);
1855	}
1856
1857	for (uScreenId = 0; uScreenId < mcMonitors; uScreenId++)
1858	{
1859	#ifndef VBOX_WITH_OLD_VBVA_LOCK
1860	if (!maFramebuffers[uScreenId].pFramebuffer.isNull())
1861	{
1862	maFramebuffers[uScreenId].pFramebuffer->Unlock ();
1863	}
1864	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1865
1866	if (maFramebuffers[uScreenId].u32ResizeStatus == ResizeStatus_Void)
1867	{
1868	/* Draw the framebuffer. */
1869	vbvaRgnUpdateFramebuffer (&rgn, uScreenId);
1870	}
1871	}
1872	}
1873
1874	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1875	int Display::videoAccelRefreshProcess(void)
1876	{
1877	int rc = VWRN_INVALID_STATE; /* Default is to do a display update in VGA device. */
1878
1879	vbvaLock();
1880
1881	if (ASMAtomicCmpXchgU32(&mfu32PendingVideoAccelDisable, false, true))
1882	{
1883	videoAccelEnable (false, NULL);
1884	}
1885	else if (mfPendingVideoAccelEnable)
1886	{
1887	/* Acceleration was enabled while machine was not yet running
1888	* due to restoring from saved state. Update entire display and
1889	* actually enable acceleration.
1890	*/
1891	Assert(mpPendingVbvaMemory);
1892
1893	/* Acceleration can not be yet enabled.*/
1894	Assert(mpVbvaMemory == NULL);
1895	Assert(!mfVideoAccelEnabled);
1896
1897	if (mfMachineRunning)
1898	{
1899	videoAccelEnable (mfPendingVideoAccelEnable,
1900	mpPendingVbvaMemory);
1901
1902	/* Reset the pending state. */
1903	mfPendingVideoAccelEnable = false;
1904	mpPendingVbvaMemory = NULL;
1905	}
1906
1907	rc = VINF_TRY_AGAIN;
1908	}
1909	else
1910	{
1911	Assert(mpPendingVbvaMemory == NULL);
1912
1913	if (mfVideoAccelEnabled)
1914	{
1915	Assert(mpVbvaMemory);
1916	videoAccelFlush ();
1917
1918	rc = VINF_SUCCESS; /* VBVA processed, no need to a display update. */
1919	}
1920	}
1921
1922	vbvaUnlock();
1923
1924	return rc;
1925	}
1926	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1927
1928
1929	// IDisplay properties
1930	/////////////////////////////////////////////////////////////////////////////
1931
1932	/**
1933	* Returns the current display width in pixel
1934	*
1935	* @returns COM status code
1936	* @param width Address of result variable.
1937	*/
1938	STDMETHODIMP Display::COMGETTER(Width) (ULONG *width)
1939	{
1940	CheckComArgNotNull(width);
1941
1942	AutoCaller autoCaller(this);
1943	if (FAILED(autoCaller.rc())) return autoCaller.rc();
1944
1945	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
1946
1947	CHECK_CONSOLE_DRV (mpDrv);
1948
1949	*width = mpDrv->Connector.cx;
1950
1951	return S_OK;
1952	}
1953
1954	/**
1955	* Returns the current display height in pixel
1956	*
1957	* @returns COM status code
1958	* @param height Address of result variable.
1959	*/
1960	STDMETHODIMP Display::COMGETTER(Height) (ULONG *height)
1961	{
1962	CheckComArgNotNull(height);
1963
1964	AutoCaller autoCaller(this);
1965	if (FAILED(autoCaller.rc())) return autoCaller.rc();
1966
1967	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
1968
1969	CHECK_CONSOLE_DRV (mpDrv);
1970
1971	*height = mpDrv->Connector.cy;
1972
1973	return S_OK;
1974	}
1975
1976	/**
1977	* Returns the current display color depth in bits
1978	*
1979	* @returns COM status code
1980	* @param bitsPerPixel Address of result variable.
1981	*/
1982	STDMETHODIMP Display::COMGETTER(BitsPerPixel) (ULONG *bitsPerPixel)
1983	{
1984	if (!bitsPerPixel)
1985	return E_INVALIDARG;
1986
1987	AutoCaller autoCaller(this);
1988	if (FAILED(autoCaller.rc())) return autoCaller.rc();
1989
1990	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
1991
1992	CHECK_CONSOLE_DRV (mpDrv);
1993
1994	uint32_t cBits = 0;
1995	int rc = mpDrv->pUpPort->pfnQueryColorDepth(mpDrv->pUpPort, &cBits);
1996	AssertRC(rc);
1997	*bitsPerPixel = cBits;
1998
1999	return S_OK;
2000	}
2001
2002
2003	// IDisplay methods
2004	/////////////////////////////////////////////////////////////////////////////
2005
2006	STDMETHODIMP Display::SetFramebuffer (ULONG aScreenId,
2007	IFramebuffer *aFramebuffer)
2008	{
2009	LogFlowFunc (("\n"));
2010
2011	if (aFramebuffer != NULL)
2012	CheckComArgOutPointerValid(aFramebuffer);
2013
2014	AutoCaller autoCaller(this);
2015	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2016
2017	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2018
2019	Console::SafeVMPtrQuiet pVM (mParent);
2020	if (pVM.isOk())
2021	{
2022	/* Must leave the lock here because the changeFramebuffer will
2023	* also obtain it. */
2024	alock.leave ();
2025
2026	/* send request to the EMT thread */
2027	int vrc = VMR3ReqCallWait (pVM, VMCPUID_ANY,
2028	(PFNRT) changeFramebuffer, 3, this, aFramebuffer, aScreenId);
2029
2030	alock.enter ();
2031
2032	ComAssertRCRet (vrc, E_FAIL);
2033	}
2034	else
2035	{
2036	/* No VM is created (VM is powered off), do a direct call */
2037	int vrc = changeFramebuffer (this, aFramebuffer, aScreenId);
2038	ComAssertRCRet (vrc, E_FAIL);
2039	}
2040
2041	return S_OK;
2042	}
2043
2044	STDMETHODIMP Display::GetFramebuffer (ULONG aScreenId,
2045	IFramebuffer *aFramebuffer, LONG aXOrigin, LONG *aYOrigin)
2046	{
2047	LogFlowFunc (("aScreenId = %d\n", aScreenId));
2048
2049	CheckComArgOutPointerValid(aFramebuffer);
2050
2051	AutoCaller autoCaller(this);
2052	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2053
2054	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2055
2056	/* @todo this should be actually done on EMT. */
2057	DISPLAYFBINFO *pFBInfo = &maFramebuffers[aScreenId];
2058
2059	*aFramebuffer = pFBInfo->pFramebuffer;
2060	if (*aFramebuffer)
2061	(*aFramebuffer)->AddRef ();
2062	if (aXOrigin)
2063	*aXOrigin = pFBInfo->xOrigin;
2064	if (aYOrigin)
2065	*aYOrigin = pFBInfo->yOrigin;
2066
2067	return S_OK;
2068	}
2069
2070	STDMETHODIMP Display::SetVideoModeHint(ULONG aWidth, ULONG aHeight,
2071	ULONG aBitsPerPixel, ULONG aDisplay)
2072	{
2073	AutoCaller autoCaller(this);
2074	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2075
2076	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2077
2078	CHECK_CONSOLE_DRV (mpDrv);
2079
2080	/*
2081	* Do some rough checks for valid input
2082	*/
2083	ULONG width = aWidth;
2084	if (!width)
2085	width = mpDrv->Connector.cx;
2086	ULONG height = aHeight;
2087	if (!height)
2088	height = mpDrv->Connector.cy;
2089	ULONG bpp = aBitsPerPixel;
2090	if (!bpp)
2091	{
2092	uint32_t cBits = 0;
2093	int rc = mpDrv->pUpPort->pfnQueryColorDepth(mpDrv->pUpPort, &cBits);
2094	AssertRC(rc);
2095	bpp = cBits;
2096	}
2097	ULONG cMonitors;
2098	mParent->machine()->COMGETTER(MonitorCount)(&cMonitors);
2099	if (cMonitors == 0 && aDisplay > 0)
2100	return E_INVALIDARG;
2101	if (aDisplay >= cMonitors)
2102	return E_INVALIDARG;
2103
2104	// sunlover 20070614: It is up to the guest to decide whether the hint is valid.
2105	// ULONG vramSize;
2106	// mParent->machine()->COMGETTER(VRAMSize)(&vramSize);
2107	// /* enough VRAM? */
2108	// if ((width * height * (bpp / 8)) > (vramSize * 1024 * 1024))
2109	// return setError(E_FAIL, tr("Not enough VRAM for the selected video mode"));
2110
2111	/* Have to leave the lock because the pfnRequestDisplayChange
2112	* will call EMT. */
2113	alock.leave ();
2114	if (mParent->getVMMDev())
2115	mParent->getVMMDev()->getVMMDevPort()->
2116	pfnRequestDisplayChange (mParent->getVMMDev()->getVMMDevPort(),
2117	aWidth, aHeight, aBitsPerPixel, aDisplay);
2118	return S_OK;
2119	}
2120
2121	STDMETHODIMP Display::SetSeamlessMode (BOOL enabled)
2122	{
2123	AutoCaller autoCaller(this);
2124	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2125
2126	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2127
2128	/* Have to leave the lock because the pfnRequestSeamlessChange will call EMT. */
2129	alock.leave ();
2130	if (mParent->getVMMDev())
2131	mParent->getVMMDev()->getVMMDevPort()->
2132	pfnRequestSeamlessChange (mParent->getVMMDev()->getVMMDevPort(),
2133	!!enabled);
2134	return S_OK;
2135	}
2136
2137	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2138	int Display::displayTakeScreenshotEMT(Display pDisplay, uint8_t ppu8Data, size_t pcbData, uint32_t pu32Width, uint32_t pu32Height)
2139	{
2140	int rc;
2141	pDisplay->vbvaLock();
2142	rc = pDisplay->mpDrv->pUpPort->pfnTakeScreenshot(pDisplay->mpDrv->pUpPort, ppu8Data, pcbData, pu32Width, pu32Height);
2143	pDisplay->vbvaUnlock();
2144	return rc;
2145	}
2146	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2147
2148	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2149	static int displayTakeScreenshot(PVM pVM, Display pDisplay, struct DRVMAINDISPLAY pDrv, BYTE *address, ULONG width, ULONG height)
2150	#else
2151	static int displayTakeScreenshot(PVM pVM, struct DRVMAINDISPLAY pDrv, BYTE address, ULONG width, ULONG height)
2152	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2153	{
2154	uint8_t *pu8Data = NULL;
2155	size_t cbData = 0;
2156	uint32_t cx = 0;
2157	uint32_t cy = 0;
2158
2159	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2160	int vrc = VMR3ReqCallWait(pVM, VMCPUID_ANY, (PFNRT)Display::displayTakeScreenshotEMT, 5,
2161	pDisplay, &pu8Data, &cbData, &cx, &cy);
2162	#else
2163	/* @todo pfnTakeScreenshot is probably callable from any thread, because it uses the VGA device lock. */
2164	int vrc = VMR3ReqCallWait(pVM, VMCPUID_ANY, (PFNRT)pDrv->pUpPort->pfnTakeScreenshot, 5,
2165	pDrv->pUpPort, &pu8Data, &cbData, &cx, &cy);
2166	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2167
2168	if (RT_SUCCESS(vrc))
2169	{
2170	if (cx == width && cy == height)
2171	{
2172	/* No scaling required. */
2173	memcpy(address, pu8Data, cbData);
2174	}
2175	else
2176	{
2177	/* Scale. */
2178	LogFlowFunc(("SCALE: %dx%d -> %dx%d\n", cx, cy, width, height));
2179
2180	uint8_t *dst = address;
2181	uint8_t *src = pu8Data;
2182	int dstX = 0;
2183	int dstY = 0;
2184	int srcX = 0;
2185	int srcY = 0;
2186	int dstW = width;
2187	int dstH = height;
2188	int srcW = cx;
2189	int srcH = cy;
2190	gdImageCopyResampled (dst,
2191	src,
2192	dstX, dstY,
2193	srcX, srcY,
2194	dstW, dstH, srcW, srcH);
2195	}
2196
2197	/* This can be called from any thread. */
2198	pDrv->pUpPort->pfnFreeScreenshot (pDrv->pUpPort, pu8Data);
2199	}
2200
2201	return vrc;
2202	}
2203
2204	STDMETHODIMP Display::TakeScreenShot (BYTE *address, ULONG width, ULONG height)
2205	{
2206	/// @todo (r=dmik) this function may take too long to complete if the VM
2207	// is doing something like saving state right now. Which, in case if it
2208	// is called on the GUI thread, will make it unresponsive. We should
2209	// check the machine state here (by enclosing the check and VMRequCall
2210	// within the Console lock to make it atomic).
2211
2212	LogFlowFuncEnter();
2213	LogFlowFunc (("address=%p, width=%d, height=%d\n",
2214	address, width, height));
2215
2216	CheckComArgNotNull(address);
2217	CheckComArgExpr(width, width != 0);
2218	CheckComArgExpr(height, height != 0);
2219
2220	AutoCaller autoCaller(this);
2221	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2222
2223	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2224
2225	CHECK_CONSOLE_DRV (mpDrv);
2226
2227	Console::SafeVMPtr pVM(mParent);
2228	if (FAILED(pVM.rc())) return pVM.rc();
2229
2230	HRESULT rc = S_OK;
2231
2232	LogFlowFunc (("Sending SCREENSHOT request\n"));
2233
2234	/* Leave lock because other thread (EMT) is called and it may initiate a resize
2235	* which also needs lock.
2236	*
2237	* This method does not need the lock anymore.
2238	*/
2239	alock.leave();
2240
2241	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2242	int vrc = displayTakeScreenshot(pVM, this, mpDrv, address, width, height);
2243	#else
2244	int vrc = displayTakeScreenshot(pVM, mpDrv, address, width, height);
2245	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2246
2247	if (vrc == VERR_NOT_IMPLEMENTED)
2248	rc = setError (E_NOTIMPL,
2249	tr ("This feature is not implemented"));
2250	else if (RT_FAILURE(vrc))
2251	rc = setError (VBOX_E_IPRT_ERROR,
2252	tr ("Could not take a screenshot (%Rrc)"), vrc);
2253
2254	LogFlowFunc (("rc=%08X\n", rc));
2255	LogFlowFuncLeave();
2256	return rc;
2257	}
2258
2259	STDMETHODIMP Display::TakeScreenShotSlow (ULONG width, ULONG height,
2260	ComSafeArrayOut(BYTE, aScreenData))
2261	{
2262	LogFlowFuncEnter();
2263	LogFlowFunc (("width=%d, height=%d\n",
2264	width, height));
2265
2266	CheckComArgSafeArrayNotNull(aScreenData);
2267	CheckComArgExpr(width, width != 0);
2268	CheckComArgExpr(height, height != 0);
2269
2270	AutoCaller autoCaller(this);
2271	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2272
2273	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2274
2275	CHECK_CONSOLE_DRV (mpDrv);
2276
2277	Console::SafeVMPtr pVM(mParent);
2278	if (FAILED(pVM.rc())) return pVM.rc();
2279
2280	HRESULT rc = S_OK;
2281
2282	LogFlowFunc (("Sending SCREENSHOT request\n"));
2283
2284	/* Leave lock because other thread (EMT) is called and it may initiate a resize
2285	* which also needs lock.
2286	*
2287	* This method does not need the lock anymore.
2288	*/
2289	alock.leave();
2290
2291	size_t cbData = width * 4 * height;
2292	uint8_t pu8Data = (uint8_t )RTMemAlloc(cbData);
2293
2294	if (!pu8Data)
2295	return E_OUTOFMEMORY;
2296
2297	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2298	int vrc = displayTakeScreenshot(pVM, this, mpDrv, pu8Data, width, height);
2299	#else
2300	int vrc = displayTakeScreenshot(pVM, mpDrv, pu8Data, width, height);
2301	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2302
2303	if (RT_SUCCESS(vrc))
2304	{
2305	/* Convert pixels to format expected by the API caller: [0] R, [1] G, [2] B, [3] A. */
2306	uint8_t *pu8 = pu8Data;
2307	unsigned cPixels = width * height;
2308	while (cPixels)
2309	{
2310	uint8_t u8 = pu8[0];
2311	pu8[0] = pu8[2];
2312	pu8[2] = u8;
2313	pu8[3] = 0xff;
2314	cPixels--;
2315	pu8 += 4;
2316	}
2317
2318	com::SafeArray<BYTE> screenData (cbData);
2319	for (unsigned i = 0; i < cbData; i++)
2320	screenData[i] = pu8Data[i];
2321	screenData.detachTo(ComSafeArrayOutArg(aScreenData));
2322	}
2323	else if (vrc == VERR_NOT_IMPLEMENTED)
2324	rc = setError (E_NOTIMPL,
2325	tr ("This feature is not implemented"));
2326	else
2327	rc = setError (VBOX_E_IPRT_ERROR,
2328	tr ("Could not take a screenshot (%Rrc)"), vrc);
2329
2330	LogFlowFunc (("rc=%08X\n", rc));
2331	LogFlowFuncLeave();
2332	return rc;
2333	}
2334
2335	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2336	int Display::DrawToScreenEMT(Display pDisplay, BYTE address, ULONG x, ULONG y, ULONG width, ULONG height)
2337	{
2338	int rc;
2339	pDisplay->vbvaLock();
2340	rc = pDisplay->mpDrv->pUpPort->pfnDisplayBlt(pDisplay->mpDrv->pUpPort, address, x, y, width, height);
2341	pDisplay->vbvaUnlock();
2342	return rc;
2343	}
2344	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2345
2346	STDMETHODIMP Display::DrawToScreen (BYTE *address, ULONG x, ULONG y,
2347	ULONG width, ULONG height)
2348	{
2349	/// @todo (r=dmik) this function may take too long to complete if the VM
2350	// is doing something like saving state right now. Which, in case if it
2351	// is called on the GUI thread, will make it unresponsive. We should
2352	// check the machine state here (by enclosing the check and VMRequCall
2353	// within the Console lock to make it atomic).
2354
2355	LogFlowFuncEnter();
2356	LogFlowFunc (("address=%p, x=%d, y=%d, width=%d, height=%d\n",
2357	(void *)address, x, y, width, height));
2358
2359	CheckComArgNotNull(address);
2360	CheckComArgExpr(width, width != 0);
2361	CheckComArgExpr(height, height != 0);
2362
2363	AutoCaller autoCaller(this);
2364	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2365
2366	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2367
2368	CHECK_CONSOLE_DRV (mpDrv);
2369
2370	Console::SafeVMPtr pVM(mParent);
2371	if (FAILED(pVM.rc())) return pVM.rc();
2372
2373	/*
2374	* Again we're lazy and make the graphics device do all the
2375	* dirty conversion work.
2376	*/
2377	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2378	int rcVBox = VMR3ReqCallWait(pVM, VMCPUID_ANY, (PFNRT)Display::DrawToScreenEMT, 6,
2379	this, address, x, y, width, height);
2380	#else
2381	int rcVBox = VMR3ReqCallWait(pVM, VMCPUID_ANY, (PFNRT)mpDrv->pUpPort->pfnDisplayBlt, 6,
2382	mpDrv->pUpPort, address, x, y, width, height);
2383	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2384
2385	/*
2386	* If the function returns not supported, we'll have to do all the
2387	* work ourselves using the framebuffer.
2388	*/
2389	HRESULT rc = S_OK;
2390	if (rcVBox == VERR_NOT_SUPPORTED \|\| rcVBox == VERR_NOT_IMPLEMENTED)
2391	{
2392	/** @todo implement generic fallback for screen blitting. */
2393	rc = E_NOTIMPL;
2394	}
2395	else if (RT_FAILURE(rcVBox))
2396	rc = setError (VBOX_E_IPRT_ERROR,
2397	tr ("Could not draw to the screen (%Rrc)"), rcVBox);
2398	//@todo
2399	// else
2400	// {
2401	// /* All ok. Redraw the screen. */
2402	// handleDisplayUpdate (x, y, width, height);
2403	// }
2404
2405	LogFlowFunc (("rc=%08X\n", rc));
2406	LogFlowFuncLeave();
2407	return rc;
2408	}
2409
2410	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2411	void Display::InvalidateAndUpdateEMT(Display *pDisplay)
2412	{
2413	pDisplay->vbvaLock();
2414	pDisplay->mpDrv->pUpPort->pfnUpdateDisplayAll(pDisplay->mpDrv->pUpPort);
2415	pDisplay->vbvaUnlock();
2416	}
2417	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2418
2419	/**
2420	* Does a full invalidation of the VM display and instructs the VM
2421	* to update it immediately.
2422	*
2423	* @returns COM status code
2424	*/
2425	STDMETHODIMP Display::InvalidateAndUpdate()
2426	{
2427	LogFlowFuncEnter();
2428
2429	AutoCaller autoCaller(this);
2430	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2431
2432	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2433
2434	CHECK_CONSOLE_DRV (mpDrv);
2435
2436	Console::SafeVMPtr pVM(mParent);
2437	if (FAILED(pVM.rc())) return pVM.rc();
2438
2439	HRESULT rc = S_OK;
2440
2441	LogFlowFunc (("Sending DPYUPDATE request\n"));
2442
2443	/* Have to leave the lock when calling EMT. */
2444	alock.leave ();
2445
2446	/* pdm.h says that this has to be called from the EMT thread */
2447	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2448	int rcVBox = VMR3ReqCallVoidWait(pVM, VMCPUID_ANY, (PFNRT)Display::InvalidateAndUpdateEMT,
2449	1, this);
2450	#else
2451	int rcVBox = VMR3ReqCallVoidWait(pVM, VMCPUID_ANY,
2452	(PFNRT)mpDrv->pUpPort->pfnUpdateDisplayAll, 1, mpDrv->pUpPort);
2453	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2454	alock.enter ();
2455
2456	if (RT_FAILURE(rcVBox))
2457	rc = setError (VBOX_E_IPRT_ERROR,
2458	tr ("Could not invalidate and update the screen (%Rrc)"), rcVBox);
2459
2460	LogFlowFunc (("rc=%08X\n", rc));
2461	LogFlowFuncLeave();
2462	return rc;
2463	}
2464
2465	/**
2466	* Notification that the framebuffer has completed the
2467	* asynchronous resize processing
2468	*
2469	* @returns COM status code
2470	*/
2471	STDMETHODIMP Display::ResizeCompleted(ULONG aScreenId)
2472	{
2473	LogFlowFunc (("\n"));
2474
2475	/// @todo (dmik) can we AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); here?
2476	// do it when we switch this class to VirtualBoxBase_NEXT.
2477	// This will require general code review and may add some details.
2478	// In particular, we may want to check whether EMT is really waiting for
2479	// this notification, etc. It might be also good to obey the caller to make
2480	// sure this method is not called from more than one thread at a time
2481	// (and therefore don't use Display lock at all here to save some
2482	// milliseconds).
2483	AutoCaller autoCaller(this);
2484	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2485
2486	/* this is only valid for external framebuffers */
2487	if (maFramebuffers[aScreenId].pFramebuffer == NULL)
2488	return setError (VBOX_E_NOT_SUPPORTED,
2489	tr ("Resize completed notification is valid only "
2490	"for external framebuffers"));
2491
2492	/* Set the flag indicating that the resize has completed and display
2493	* data need to be updated. */
2494	bool f = ASMAtomicCmpXchgU32 (&maFramebuffers[aScreenId].u32ResizeStatus,
2495	ResizeStatus_UpdateDisplayData, ResizeStatus_InProgress);
2496	AssertRelease(f);NOREF(f);
2497
2498	return S_OK;
2499	}
2500
2501	/**
2502	* Notification that the framebuffer has completed the
2503	* asynchronous update processing
2504	*
2505	* @returns COM status code
2506	*/
2507	STDMETHODIMP Display::UpdateCompleted()
2508	{
2509	LogFlowFunc (("\n"));
2510
2511	/// @todo (dmik) can we AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); here?
2512	// do it when we switch this class to VirtualBoxBase_NEXT.
2513	// Tthis will require general code review and may add some details.
2514	// In particular, we may want to check whether EMT is really waiting for
2515	// this notification, etc. It might be also good to obey the caller to make
2516	// sure this method is not called from more than one thread at a time
2517	// (and therefore don't use Display lock at all here to save some
2518	// milliseconds).
2519	AutoCaller autoCaller(this);
2520	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2521
2522	/* this is only valid for external framebuffers */
2523	if (maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer == NULL)
2524	return setError (VBOX_E_NOT_SUPPORTED,
2525	tr ("Resize completed notification is valid only "
2526	"for external framebuffers"));
2527
2528	return S_OK;
2529	}
2530
2531	STDMETHODIMP Display::CompleteVHWACommand(BYTE *pCommand)
2532	{
2533	#ifdef VBOX_WITH_VIDEOHWACCEL
2534	mpDrv->pVBVACallbacks->pfnVHWACommandCompleteAsynch(mpDrv->pVBVACallbacks, (PVBOXVHWACMD)pCommand);
2535	return S_OK;
2536	#else
2537	return E_NOTIMPL;
2538	#endif
2539	}
2540
2541	// private methods
2542	/////////////////////////////////////////////////////////////////////////////
2543
2544	/**
2545	* Helper to update the display information from the framebuffer.
2546	*
2547	* @param aCheckParams true to compare the parameters of the current framebuffer
2548	* and the new one and issue handleDisplayResize()
2549	* if they differ.
2550	* @thread EMT
2551	*/
2552	void Display::updateDisplayData (bool aCheckParams /* = false */)
2553	{
2554	/* the driver might not have been constructed yet */
2555	if (!mpDrv)
2556	return;
2557
2558	#if DEBUG
2559	/*
2560	* Sanity check. Note that this method may be called on EMT after Console
2561	* has started the power down procedure (but before our #drvDestruct() is
2562	* called, in which case pVM will aleady be NULL but mpDrv will not). Since
2563	* we don't really need pVM to proceed, we avoid this check in the release
2564	* build to save some ms (necessary to construct SafeVMPtrQuiet) in this
2565	* time-critical method.
2566	*/
2567	Console::SafeVMPtrQuiet pVM (mParent);
2568	if (pVM.isOk())
2569	VM_ASSERT_EMT (pVM.raw());
2570	#endif
2571
2572	/* The method is only relevant to the primary framebuffer. */
2573	IFramebuffer *pFramebuffer = maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer;
2574
2575	if (pFramebuffer)
2576	{
2577	HRESULT rc;
2578	BYTE *address = 0;
2579	rc = pFramebuffer->COMGETTER(Address) (&address);
2580	AssertComRC (rc);
2581	ULONG bytesPerLine = 0;
2582	rc = pFramebuffer->COMGETTER(BytesPerLine) (&bytesPerLine);
2583	AssertComRC (rc);
2584	ULONG bitsPerPixel = 0;
2585	rc = pFramebuffer->COMGETTER(BitsPerPixel) (&bitsPerPixel);
2586	AssertComRC (rc);
2587	ULONG width = 0;
2588	rc = pFramebuffer->COMGETTER(Width) (&width);
2589	AssertComRC (rc);
2590	ULONG height = 0;
2591	rc = pFramebuffer->COMGETTER(Height) (&height);
2592	AssertComRC (rc);
2593
2594	/*
2595	* Check current parameters with new ones and issue handleDisplayResize()
2596	* to let the new frame buffer adjust itself properly. Note that it will
2597	* result into a recursive updateDisplayData() call but with
2598	* aCheckOld = false.
2599	*/
2600	if (aCheckParams &&
2601	(mLastAddress != address \|\|
2602	mLastBytesPerLine != bytesPerLine \|\|
2603	mLastBitsPerPixel != bitsPerPixel \|\|
2604	mLastWidth != (int) width \|\|
2605	mLastHeight != (int) height))
2606	{
2607	handleDisplayResize (VBOX_VIDEO_PRIMARY_SCREEN, mLastBitsPerPixel,
2608	mLastAddress,
2609	mLastBytesPerLine,
2610	mLastWidth,
2611	mLastHeight);
2612	return;
2613	}
2614
2615	mpDrv->Connector.pu8Data = (uint8_t *) address;
2616	mpDrv->Connector.cbScanline = bytesPerLine;
2617	mpDrv->Connector.cBits = bitsPerPixel;
2618	mpDrv->Connector.cx = width;
2619	mpDrv->Connector.cy = height;
2620	}
2621	else
2622	{
2623	/* black hole */
2624	mpDrv->Connector.pu8Data = NULL;
2625	mpDrv->Connector.cbScanline = 0;
2626	mpDrv->Connector.cBits = 0;
2627	mpDrv->Connector.cx = 0;
2628	mpDrv->Connector.cy = 0;
2629	}
2630	}
2631
2632	/**
2633	* Changes the current frame buffer. Called on EMT to avoid both
2634	* race conditions and excessive locking.
2635	*
2636	* @note locks this object for writing
2637	* @thread EMT
2638	*/
2639	/* static */
2640	DECLCALLBACK(int) Display::changeFramebuffer (Display that, IFramebuffer aFB,
2641	unsigned uScreenId)
2642	{
2643	LogFlowFunc (("uScreenId = %d\n", uScreenId));
2644
2645	AssertReturn(that, VERR_INVALID_PARAMETER);
2646	AssertReturn(uScreenId < that->mcMonitors, VERR_INVALID_PARAMETER);
2647
2648	AutoCaller autoCaller(that);
2649	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2650
2651	AutoWriteLock alock(that COMMA_LOCKVAL_SRC_POS);
2652
2653	DISPLAYFBINFO *pDisplayFBInfo = &that->maFramebuffers[uScreenId];
2654	pDisplayFBInfo->pFramebuffer = aFB;
2655
2656	that->mParent->consoleVRDPServer()->SendResize ();
2657
2658	that->updateDisplayData (true /* aCheckParams */);
2659
2660	return VINF_SUCCESS;
2661	}
2662
2663	/**
2664	* Handle display resize event issued by the VGA device for the primary screen.
2665	*
2666	* @see PDMIDISPLAYCONNECTOR::pfnResize
2667	*/
2668	DECLCALLBACK(int) Display::displayResizeCallback(PPDMIDISPLAYCONNECTOR pInterface,
2669	uint32_t bpp, void *pvVRAM, uint32_t cbLine, uint32_t cx, uint32_t cy)
2670	{
2671	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2672
2673	LogFlowFunc (("bpp %d, pvVRAM %p, cbLine %d, cx %d, cy %d\n",
2674	bpp, pvVRAM, cbLine, cx, cy));
2675
2676	return pDrv->pDisplay->handleDisplayResize(VBOX_VIDEO_PRIMARY_SCREEN, bpp, pvVRAM, cbLine, cx, cy);
2677	}
2678
2679	/**
2680	* Handle display update.
2681	*
2682	* @see PDMIDISPLAYCONNECTOR::pfnUpdateRect
2683	*/
2684	DECLCALLBACK(void) Display::displayUpdateCallback(PPDMIDISPLAYCONNECTOR pInterface,
2685	uint32_t x, uint32_t y, uint32_t cx, uint32_t cy)
2686	{
2687	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2688
2689	#ifdef DEBUG_sunlover
2690	LogFlowFunc (("mfVideoAccelEnabled = %d, %d,%d %dx%d\n",
2691	pDrv->pDisplay->mfVideoAccelEnabled, x, y, cx, cy));
2692	#endif /* DEBUG_sunlover */
2693
2694	/* This call does update regardless of VBVA status.
2695	* But in VBVA mode this is called only as result of
2696	* pfnUpdateDisplayAll in the VGA device.
2697	*/
2698
2699	pDrv->pDisplay->handleDisplayUpdate(x, y, cx, cy);
2700	}
2701
2702	/**
2703	* Periodic display refresh callback.
2704	*
2705	* @see PDMIDISPLAYCONNECTOR::pfnRefresh
2706	*/
2707	DECLCALLBACK(void) Display::displayRefreshCallback(PPDMIDISPLAYCONNECTOR pInterface)
2708	{
2709	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2710
2711	#ifdef DEBUG_sunlover
2712	STAM_PROFILE_START(&StatDisplayRefresh, a);
2713	#endif /* DEBUG_sunlover */
2714
2715	#ifdef DEBUG_sunlover_2
2716	LogFlowFunc (("pDrv->pDisplay->mfVideoAccelEnabled = %d\n",
2717	pDrv->pDisplay->mfVideoAccelEnabled));
2718	#endif /* DEBUG_sunlover_2 */
2719
2720	Display *pDisplay = pDrv->pDisplay;
2721	bool fNoUpdate = false; /* Do not update the display if any of the framebuffers is being resized. */
2722	unsigned uScreenId;
2723
2724	for (uScreenId = 0; uScreenId < pDisplay->mcMonitors; uScreenId++)
2725	{
2726	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId];
2727
2728	/* Check the resize status. The status can be checked normally because
2729	* the status affects only the EMT.
2730	*/
2731	uint32_t u32ResizeStatus = pFBInfo->u32ResizeStatus;
2732
2733	if (u32ResizeStatus == ResizeStatus_UpdateDisplayData)
2734	{
2735	LogFlowFunc (("ResizeStatus_UpdateDisplayData %d\n", uScreenId));
2736	fNoUpdate = true; /* Always set it here, because pfnUpdateDisplayAll can cause a new resize. */
2737	/* The framebuffer was resized and display data need to be updated. */
2738	pDisplay->handleResizeCompletedEMT ();
2739	if (pFBInfo->u32ResizeStatus != ResizeStatus_Void)
2740	{
2741	/* The resize status could be not Void here because a pending resize is issued. */
2742	continue;
2743	}
2744	/* Continue with normal processing because the status here is ResizeStatus_Void. */
2745	if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN)
2746	{
2747	/* Repaint the display because VM continued to run during the framebuffer resize. */
2748	if (!pFBInfo->pFramebuffer.isNull())
2749	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2750	{
2751	pDisplay->vbvaLock();
2752	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2753	pDrv->pUpPort->pfnUpdateDisplayAll(pDrv->pUpPort);
2754	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2755	pDisplay->vbvaUnlock();
2756	}
2757	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2758	}
2759	}
2760	else if (u32ResizeStatus == ResizeStatus_InProgress)
2761	{
2762	/* The framebuffer is being resized. Do not call the VGA device back. Immediately return. */
2763	LogFlowFunc (("ResizeStatus_InProcess\n"));
2764	fNoUpdate = true;
2765	continue;
2766	}
2767	}
2768
2769	if (!fNoUpdate)
2770	{
2771	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2772	int rc = pDisplay->videoAccelRefreshProcess();
2773
2774	if (rc != VINF_TRY_AGAIN) /* Means 'do nothing' here. */
2775	{
2776	if (rc == VWRN_INVALID_STATE)
2777	{
2778	/* No VBVA do a display update. */
2779	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN];
2780	if (!pFBInfo->pFramebuffer.isNull() && pFBInfo->u32ResizeStatus == ResizeStatus_Void)
2781	{
2782	Assert(pDrv->Connector.pu8Data);
2783	pDisplay->vbvaLock();
2784	pDrv->pUpPort->pfnUpdateDisplay(pDrv->pUpPort);
2785	pDisplay->vbvaUnlock();
2786	}
2787	}
2788
2789	/* Inform the VRDP server that the current display update sequence is
2790	* completed. At this moment the framebuffer memory contains a definite
2791	* image, that is synchronized with the orders already sent to VRDP client.
2792	* The server can now process redraw requests from clients or initial
2793	* fullscreen updates for new clients.
2794	*/
2795	for (uScreenId = 0; uScreenId < pDisplay->mcMonitors; uScreenId++)
2796	{
2797	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId];
2798
2799	if (!pFBInfo->pFramebuffer.isNull() && pFBInfo->u32ResizeStatus == ResizeStatus_Void)
2800	{
2801	Assert (pDisplay->mParent && pDisplay->mParent->consoleVRDPServer());
2802	pDisplay->mParent->consoleVRDPServer()->SendUpdate (uScreenId, NULL, 0);
2803	}
2804	}
2805	}
2806	#else
2807	if (pDisplay->mfPendingVideoAccelEnable)
2808	{
2809	/* Acceleration was enabled while machine was not yet running
2810	* due to restoring from saved state. Update entire display and
2811	* actually enable acceleration.
2812	*/
2813	Assert(pDisplay->mpPendingVbvaMemory);
2814
2815	/* Acceleration can not be yet enabled.*/
2816	Assert(pDisplay->mpVbvaMemory == NULL);
2817	Assert(!pDisplay->mfVideoAccelEnabled);
2818
2819	if (pDisplay->mfMachineRunning)
2820	{
2821	pDisplay->VideoAccelEnable (pDisplay->mfPendingVideoAccelEnable,
2822	pDisplay->mpPendingVbvaMemory);
2823
2824	/* Reset the pending state. */
2825	pDisplay->mfPendingVideoAccelEnable = false;
2826	pDisplay->mpPendingVbvaMemory = NULL;
2827	}
2828	}
2829	else
2830	{
2831	Assert(pDisplay->mpPendingVbvaMemory == NULL);
2832
2833	if (pDisplay->mfVideoAccelEnabled)
2834	{
2835	Assert(pDisplay->mpVbvaMemory);
2836	pDisplay->VideoAccelFlush ();
2837	}
2838	else
2839	{
2840	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN];
2841	if (!pFBInfo->pFramebuffer.isNull())
2842	{
2843	Assert(pDrv->Connector.pu8Data);
2844	Assert(pFBInfo->u32ResizeStatus == ResizeStatus_Void);
2845	pDrv->pUpPort->pfnUpdateDisplay(pDrv->pUpPort);
2846	}
2847	}
2848
2849	/* Inform the VRDP server that the current display update sequence is
2850	* completed. At this moment the framebuffer memory contains a definite
2851	* image, that is synchronized with the orders already sent to VRDP client.
2852	* The server can now process redraw requests from clients or initial
2853	* fullscreen updates for new clients.
2854	*/
2855	for (uScreenId = 0; uScreenId < pDisplay->mcMonitors; uScreenId++)
2856	{
2857	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId];
2858
2859	if (!pFBInfo->pFramebuffer.isNull() && pFBInfo->u32ResizeStatus == ResizeStatus_Void)
2860	{
2861	Assert (pDisplay->mParent && pDisplay->mParent->consoleVRDPServer());
2862	pDisplay->mParent->consoleVRDPServer()->SendUpdate (uScreenId, NULL, 0);
2863	}
2864	}
2865	}
2866	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2867	}
2868
2869	#ifdef DEBUG_sunlover
2870	STAM_PROFILE_STOP(&StatDisplayRefresh, a);
2871	#endif /* DEBUG_sunlover */
2872	#ifdef DEBUG_sunlover_2
2873	LogFlowFunc (("leave\n"));
2874	#endif /* DEBUG_sunlover_2 */
2875	}
2876
2877	/**
2878	* Reset notification
2879	*
2880	* @see PDMIDISPLAYCONNECTOR::pfnReset
2881	*/
2882	DECLCALLBACK(void) Display::displayResetCallback(PPDMIDISPLAYCONNECTOR pInterface)
2883	{
2884	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2885
2886	LogFlowFunc (("\n"));
2887
2888	/* Disable VBVA mode. */
2889	pDrv->pDisplay->VideoAccelEnable (false, NULL);
2890	}
2891
2892	/**
2893	* LFBModeChange notification
2894	*
2895	* @see PDMIDISPLAYCONNECTOR::pfnLFBModeChange
2896	*/
2897	DECLCALLBACK(void) Display::displayLFBModeChangeCallback(PPDMIDISPLAYCONNECTOR pInterface, bool fEnabled)
2898	{
2899	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2900
2901	LogFlowFunc (("fEnabled=%d\n", fEnabled));
2902
2903	NOREF(fEnabled);
2904
2905	/* Disable VBVA mode in any case. The guest driver reenables VBVA mode if necessary. */
2906	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2907	/* This is called under DevVGA lock. Postpone disabling VBVA, do it in the refresh timer. */
2908	ASMAtomicWriteU32(&pDrv->pDisplay->mfu32PendingVideoAccelDisable, true);
2909	#else
2910	pDrv->pDisplay->VideoAccelEnable (false, NULL);
2911	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2912	}
2913
2914	/**
2915	* Adapter information change notification.
2916	*
2917	* @see PDMIDISPLAYCONNECTOR::pfnProcessAdapterData
2918	*/
2919	DECLCALLBACK(void) Display::displayProcessAdapterDataCallback(PPDMIDISPLAYCONNECTOR pInterface, void *pvVRAM, uint32_t u32VRAMSize)
2920	{
2921	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2922
2923	if (pvVRAM == NULL)
2924	{
2925	unsigned i;
2926	for (i = 0; i < pDrv->pDisplay->mcMonitors; i++)
2927	{
2928	DISPLAYFBINFO *pFBInfo = &pDrv->pDisplay->maFramebuffers[i];
2929
2930	pFBInfo->u32Offset = 0;
2931	pFBInfo->u32MaxFramebufferSize = 0;
2932	pFBInfo->u32InformationSize = 0;
2933	}
2934	}
2935	#ifndef VBOX_WITH_HGSMI
2936	else
2937	{
2938	uint8_t pu8 = (uint8_t )pvVRAM;
2939	pu8 += u32VRAMSize - VBOX_VIDEO_ADAPTER_INFORMATION_SIZE;
2940
2941	// @todo
2942	uint8_t *pu8End = pu8 + VBOX_VIDEO_ADAPTER_INFORMATION_SIZE;
2943
2944	VBOXVIDEOINFOHDR *pHdr;
2945
2946	for (;;)
2947	{
2948	pHdr = (VBOXVIDEOINFOHDR *)pu8;
2949	pu8 += sizeof (VBOXVIDEOINFOHDR);
2950
2951	if (pu8 >= pu8End)
2952	{
2953	LogRel(("VBoxVideo: Guest adapter information overflow!!!\n"));
2954	break;
2955	}
2956
2957	if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_DISPLAY)
2958	{
2959	if (pHdr->u16Length != sizeof (VBOXVIDEOINFODISPLAY))
2960	{
2961	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "DISPLAY", pHdr->u16Length));
2962	break;
2963	}
2964
2965	VBOXVIDEOINFODISPLAY pDisplay = (VBOXVIDEOINFODISPLAY )pu8;
2966
2967	if (pDisplay->u32Index >= pDrv->pDisplay->mcMonitors)
2968	{
2969	LogRel(("VBoxVideo: Guest adapter information invalid display index %d!!!\n", pDisplay->u32Index));
2970	break;
2971	}
2972
2973	DISPLAYFBINFO *pFBInfo = &pDrv->pDisplay->maFramebuffers[pDisplay->u32Index];
2974
2975	pFBInfo->u32Offset = pDisplay->u32Offset;
2976	pFBInfo->u32MaxFramebufferSize = pDisplay->u32FramebufferSize;
2977	pFBInfo->u32InformationSize = pDisplay->u32InformationSize;
2978
2979	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));
2980	}
2981	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_QUERY_CONF32)
2982	{
2983	if (pHdr->u16Length != sizeof (VBOXVIDEOINFOQUERYCONF32))
2984	{
2985	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "CONF32", pHdr->u16Length));
2986	break;
2987	}
2988
2989	VBOXVIDEOINFOQUERYCONF32 pConf32 = (VBOXVIDEOINFOQUERYCONF32 )pu8;
2990
2991	switch (pConf32->u32Index)
2992	{
2993	case VBOX_VIDEO_QCI32_MONITOR_COUNT:
2994	{
2995	pConf32->u32Value = pDrv->pDisplay->mcMonitors;
2996	} break;
2997
2998	case VBOX_VIDEO_QCI32_OFFSCREEN_HEAP_SIZE:
2999	{
3000	/* @todo make configurable. */
3001	pConf32->u32Value = _1M;
3002	} break;
3003
3004	default:
3005	LogRel(("VBoxVideo: CONF32 %d not supported!!! Skipping.\n", pConf32->u32Index));
3006	}
3007	}
3008	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_END)
3009	{
3010	if (pHdr->u16Length != 0)
3011	{
3012	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "END", pHdr->u16Length));
3013	break;
3014	}
3015
3016	break;
3017	}
3018	else if (pHdr->u8Type != VBOX_VIDEO_INFO_TYPE_NV_HEAP) /** @todo why is Additions/WINNT/Graphics/Miniport/VBoxVideo.cpp pushing this to us? */
3019	{
3020	LogRel(("Guest adapter information contains unsupported type %d. The block has been skipped.\n", pHdr->u8Type));
3021	}
3022
3023	pu8 += pHdr->u16Length;
3024	}
3025	}
3026	#endif /* !VBOX_WITH_HGSMI */
3027	}
3028
3029	/**
3030	* Display information change notification.
3031	*
3032	* @see PDMIDISPLAYCONNECTOR::pfnProcessDisplayData
3033	*/
3034	DECLCALLBACK(void) Display::displayProcessDisplayDataCallback(PPDMIDISPLAYCONNECTOR pInterface, void *pvVRAM, unsigned uScreenId)
3035	{
3036	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3037
3038	if (uScreenId >= pDrv->pDisplay->mcMonitors)
3039	{
3040	LogRel(("VBoxVideo: Guest display information invalid display index %d!!!\n", uScreenId));
3041	return;
3042	}
3043
3044	/* Get the display information structure. */
3045	DISPLAYFBINFO *pFBInfo = &pDrv->pDisplay->maFramebuffers[uScreenId];
3046
3047	uint8_t pu8 = (uint8_t )pvVRAM;
3048	pu8 += pFBInfo->u32Offset + pFBInfo->u32MaxFramebufferSize;
3049
3050	// @todo
3051	uint8_t *pu8End = pu8 + pFBInfo->u32InformationSize;
3052
3053	VBOXVIDEOINFOHDR *pHdr;
3054
3055	for (;;)
3056	{
3057	pHdr = (VBOXVIDEOINFOHDR *)pu8;
3058	pu8 += sizeof (VBOXVIDEOINFOHDR);
3059
3060	if (pu8 >= pu8End)
3061	{
3062	LogRel(("VBoxVideo: Guest display information overflow!!!\n"));
3063	break;
3064	}
3065
3066	if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_SCREEN)
3067	{
3068	if (pHdr->u16Length != sizeof (VBOXVIDEOINFOSCREEN))
3069	{
3070	LogRel(("VBoxVideo: Guest display information %s invalid length %d!!!\n", "SCREEN", pHdr->u16Length));
3071	break;
3072	}
3073
3074	VBOXVIDEOINFOSCREEN pScreen = (VBOXVIDEOINFOSCREEN )pu8;
3075
3076	pFBInfo->xOrigin = pScreen->xOrigin;
3077	pFBInfo->yOrigin = pScreen->yOrigin;
3078
3079	pFBInfo->w = pScreen->u16Width;
3080	pFBInfo->h = pScreen->u16Height;
3081
3082	LogFlow(("VBOX_VIDEO_INFO_TYPE_SCREEN: (%p) %d: at %d,%d, linesize 0x%X, size %dx%d, bpp %d, flags 0x%02X\n",
3083	pHdr, uScreenId, pScreen->xOrigin, pScreen->yOrigin, pScreen->u32LineSize, pScreen->u16Width, pScreen->u16Height, pScreen->bitsPerPixel, pScreen->u8Flags));
3084
3085	if (uScreenId != VBOX_VIDEO_PRIMARY_SCREEN)
3086	{
3087	/* Primary screen resize is initiated by the VGA device. */
3088	pDrv->pDisplay->handleDisplayResize(uScreenId, pScreen->bitsPerPixel, (uint8_t *)pvVRAM + pFBInfo->u32Offset, pScreen->u32LineSize, pScreen->u16Width, pScreen->u16Height);
3089	}
3090	}
3091	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_END)
3092	{
3093	if (pHdr->u16Length != 0)
3094	{
3095	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "END", pHdr->u16Length));
3096	break;
3097	}
3098
3099	break;
3100	}
3101	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_HOST_EVENTS)
3102	{
3103	if (pHdr->u16Length != sizeof (VBOXVIDEOINFOHOSTEVENTS))
3104	{
3105	LogRel(("VBoxVideo: Guest display information %s invalid length %d!!!\n", "HOST_EVENTS", pHdr->u16Length));
3106	break;
3107	}
3108
3109	VBOXVIDEOINFOHOSTEVENTS pHostEvents = (VBOXVIDEOINFOHOSTEVENTS )pu8;
3110
3111	pFBInfo->pHostEvents = pHostEvents;
3112
3113	LogFlow(("VBOX_VIDEO_INFO_TYPE_HOSTEVENTS: (%p)\n",
3114	pHostEvents));
3115	}
3116	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_LINK)
3117	{
3118	if (pHdr->u16Length != sizeof (VBOXVIDEOINFOLINK))
3119	{
3120	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "LINK", pHdr->u16Length));
3121	break;
3122	}
3123
3124	VBOXVIDEOINFOLINK pLink = (VBOXVIDEOINFOLINK )pu8;
3125	pu8 += pLink->i32Offset;
3126	}
3127	else
3128	{
3129	LogRel(("Guest display information contains unsupported type %d\n", pHdr->u8Type));
3130	}
3131
3132	pu8 += pHdr->u16Length;
3133	}
3134	}
3135
3136	#ifdef VBOX_WITH_VIDEOHWACCEL
3137
3138	void Display::handleVHWACommandProcess(PPDMIDISPLAYCONNECTOR pInterface, PVBOXVHWACMD pCommand)
3139	{
3140	unsigned id = (unsigned)pCommand->iDisplay;
3141	int rc = VINF_SUCCESS;
3142	if(id < mcMonitors)
3143	{
3144	IFramebuffer *pFramebuffer = maFramebuffers[id].pFramebuffer;
3145
3146	if (pFramebuffer != NULL)
3147	{
3148	pFramebuffer->Lock();
3149
3150	HRESULT hr = pFramebuffer->ProcessVHWACommand((BYTE*)pCommand);
3151	if(FAILED(hr))
3152	{
3153	rc = (hr == E_NOTIMPL) ? VERR_NOT_IMPLEMENTED : VERR_GENERAL_FAILURE;
3154	}
3155
3156	pFramebuffer->Unlock();
3157	}
3158	else
3159	{
3160	rc = VERR_NOT_IMPLEMENTED;
3161	}
3162	}
3163	else
3164	{
3165	rc = VERR_INVALID_PARAMETER;
3166	}
3167
3168	if(RT_FAILURE(rc))
3169	{
3170	/* tell the guest the command is complete */
3171	pCommand->Flags &= (~VBOXVHWACMD_FLAG_HG_ASYNCH);
3172	pCommand->rc = rc;
3173	}
3174	}
3175
3176	DECLCALLBACK(void) Display::displayVHWACommandProcess(PPDMIDISPLAYCONNECTOR pInterface, PVBOXVHWACMD pCommand)
3177	{
3178	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3179
3180	pDrv->pDisplay->handleVHWACommandProcess(pInterface, pCommand);
3181	}
3182	#endif
3183
3184	#ifdef VBOX_WITH_HGSMI
3185	DECLCALLBACK(int) Display::displayVBVAEnable(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId, PVBVAHOSTFLAGS pHostFlags)
3186	{
3187	LogFlowFunc(("uScreenId %d\n", uScreenId));
3188
3189	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3190	Display *pThis = pDrv->pDisplay;
3191
3192	pThis->maFramebuffers[uScreenId].fVBVAEnabled = true;
3193	pThis->maFramebuffers[uScreenId].pVBVAHostFlags = pHostFlags;
3194
3195	vbvaSetMemoryFlagsHGSMI(uScreenId, pThis->mfu32SupportedOrders, pThis->mfVideoAccelVRDP, &pThis->maFramebuffers[uScreenId]);
3196
3197	return VINF_SUCCESS;
3198	}
3199
3200	DECLCALLBACK(void) Display::displayVBVADisable(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId)
3201	{
3202	LogFlowFunc(("uScreenId %d\n", uScreenId));
3203
3204	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3205	Display *pThis = pDrv->pDisplay;
3206
3207	pThis->maFramebuffers[uScreenId].fVBVAEnabled = false;
3208
3209	vbvaSetMemoryFlagsHGSMI(uScreenId, 0, false, &pThis->maFramebuffers[uScreenId]);
3210
3211	pThis->maFramebuffers[uScreenId].pVBVAHostFlags = NULL;
3212	}
3213
3214	DECLCALLBACK(void) Display::displayVBVAUpdateBegin(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId)
3215	{
3216	LogFlowFunc(("uScreenId %d\n", uScreenId));
3217
3218	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3219	Display *pThis = pDrv->pDisplay;
3220	DISPLAYFBINFO *pFBInfo = &pThis->maFramebuffers[uScreenId];
3221
3222	if (ASMAtomicReadU32(&pThis->mu32UpdateVBVAFlags) > 0)
3223	{
3224	vbvaSetMemoryFlagsAllHGSMI(pThis->mfu32SupportedOrders, pThis->mfVideoAccelVRDP, pThis->maFramebuffers, pThis->mcMonitors);
3225	ASMAtomicDecU32(&pThis->mu32UpdateVBVAFlags);
3226	}
3227
3228	if (RT_LIKELY(pFBInfo->u32ResizeStatus == ResizeStatus_Void))
3229	{
3230	if (RT_UNLIKELY(pFBInfo->cVBVASkipUpdate != 0))
3231	{
3232	/* Some updates were skipped. Note: displayVBVAUpdate* callbacks are called
3233	* under display device lock, so thread safe.
3234	*/
3235	pFBInfo->cVBVASkipUpdate = 0;
3236	pThis->handleDisplayUpdate(pFBInfo->vbvaSkippedRect.xLeft,
3237	pFBInfo->vbvaSkippedRect.yTop,
3238	pFBInfo->vbvaSkippedRect.xRight - pFBInfo->vbvaSkippedRect.xLeft,
3239	pFBInfo->vbvaSkippedRect.yBottom - pFBInfo->vbvaSkippedRect.yTop);
3240	}
3241	}
3242	else
3243	{
3244	/* The framebuffer is being resized. */
3245	pFBInfo->cVBVASkipUpdate++;
3246	}
3247	}
3248
3249	DECLCALLBACK(void) Display::displayVBVAUpdateProcess(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId, const PVBVACMDHDR pCmd, size_t cbCmd)
3250	{
3251	LogFlowFunc(("uScreenId %d pCmd %p cbCmd %d\n", uScreenId, pCmd, cbCmd));
3252
3253	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3254	Display *pThis = pDrv->pDisplay;
3255	DISPLAYFBINFO *pFBInfo = &pThis->maFramebuffers[uScreenId];
3256
3257	if (RT_LIKELY(pFBInfo->cVBVASkipUpdate == 0))
3258	{
3259	if (pFBInfo->fDefaultFormat)
3260	{
3261	pDrv->pUpPort->pfnUpdateDisplayRect (pDrv->pUpPort, pCmd->x, pCmd->y, pCmd->w, pCmd->h);
3262	pThis->handleDisplayUpdate (pCmd->x + pFBInfo->xOrigin,
3263	pCmd->y + pFBInfo->yOrigin, pCmd->w, pCmd->h);
3264	}
3265
3266	pThis->mParent->consoleVRDPServer()->SendUpdate (uScreenId, pCmd, cbCmd);
3267	}
3268	}
3269
3270	DECLCALLBACK(void) Display::displayVBVAUpdateEnd(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId, int32_t x, int32_t y, uint32_t cx, uint32_t cy)
3271	{
3272	LogFlowFunc(("uScreenId %d %d,%d %dx%d\n", uScreenId, x, y, cx, cy));
3273
3274	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3275	Display *pThis = pDrv->pDisplay;
3276	DISPLAYFBINFO *pFBInfo = &pThis->maFramebuffers[uScreenId];
3277
3278	/* @todo handleFramebufferUpdate (uScreenId,
3279	* x - pThis->maFramebuffers[uScreenId].xOrigin,
3280	* y - pThis->maFramebuffers[uScreenId].yOrigin,
3281	* cx, cy);
3282	*/
3283	if (RT_LIKELY(pFBInfo->cVBVASkipUpdate == 0))
3284	{
3285	pThis->handleDisplayUpdate(x, y, cx, cy);
3286	}
3287	else
3288	{
3289	/* Save the updated rectangle. */
3290	int32_t xRight = x + cx;
3291	int32_t yBottom = y + cy;
3292
3293	if (pFBInfo->cVBVASkipUpdate == 1)
3294	{
3295	pFBInfo->vbvaSkippedRect.xLeft = x;
3296	pFBInfo->vbvaSkippedRect.yTop = y;
3297	pFBInfo->vbvaSkippedRect.xRight = xRight;
3298	pFBInfo->vbvaSkippedRect.yBottom = yBottom;
3299	}
3300	else
3301	{
3302	if (pFBInfo->vbvaSkippedRect.xLeft > x)
3303	{
3304	pFBInfo->vbvaSkippedRect.xLeft = x;
3305	}
3306	if (pFBInfo->vbvaSkippedRect.yTop > y)
3307	{
3308	pFBInfo->vbvaSkippedRect.yTop = y;
3309	}
3310	if (pFBInfo->vbvaSkippedRect.xRight < xRight)
3311	{
3312	pFBInfo->vbvaSkippedRect.xRight = xRight;
3313	}
3314	if (pFBInfo->vbvaSkippedRect.yBottom < yBottom)
3315	{
3316	pFBInfo->vbvaSkippedRect.yBottom = yBottom;
3317	}
3318	}
3319	}
3320	}
3321
3322	DECLCALLBACK(int) Display::displayVBVAResize(PPDMIDISPLAYCONNECTOR pInterface, const PVBVAINFOVIEW pView, const PVBVAINFOSCREEN pScreen, void *pvVRAM)
3323	{
3324	LogFlowFunc(("pScreen %p, pvVRAM %p\n", pScreen, pvVRAM));
3325
3326	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3327	Display *pThis = pDrv->pDisplay;
3328
3329	DISPLAYFBINFO *pFBInfo = &pThis->maFramebuffers[pScreen->u32ViewIndex];
3330
3331	pFBInfo->u32Offset = pView->u32ViewOffset; /* Not used in HGSMI. */
3332	pFBInfo->u32MaxFramebufferSize = pView->u32MaxScreenSize; /* Not used in HGSMI. */
3333	pFBInfo->u32InformationSize = 0; /* Not used in HGSMI. */
3334
3335	pFBInfo->xOrigin = pScreen->i32OriginX;
3336	pFBInfo->yOrigin = pScreen->i32OriginY;
3337
3338	pFBInfo->w = pScreen->u32Width;
3339	pFBInfo->h = pScreen->u32Height;
3340
3341	return pThis->handleDisplayResize(pScreen->u32ViewIndex, pScreen->u16BitsPerPixel,
3342	(uint8_t *)pvVRAM + pScreen->u32StartOffset,
3343	pScreen->u32LineSize, pScreen->u32Width, pScreen->u32Height);
3344	}
3345
3346	DECLCALLBACK(int) Display::displayVBVAMousePointerShape(PPDMIDISPLAYCONNECTOR pInterface, bool fVisible, bool fAlpha,
3347	uint32_t xHot, uint32_t yHot,
3348	uint32_t cx, uint32_t cy,
3349	const void *pvShape)
3350	{
3351	LogFlowFunc(("\n"));
3352
3353	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3354	Display *pThis = pDrv->pDisplay;
3355
3356	/* Tell the console about it */
3357	pDrv->pDisplay->mParent->onMousePointerShapeChange(fVisible, fAlpha,
3358	xHot, yHot, cx, cy, (void *)pvShape);
3359
3360	return VINF_SUCCESS;
3361	}
3362	#endif /* VBOX_WITH_HGSMI */
3363
3364	/**
3365	* Queries an interface to the driver.
3366	*
3367	* @returns Pointer to interface.
3368	* @returns NULL if the interface was not supported by the driver.
3369	* @param pInterface Pointer to this interface structure.
3370	* @param enmInterface The requested interface identification.
3371	*/
3372	DECLCALLBACK(void *) Display::drvQueryInterface(PPDMIBASE pInterface, PDMINTERFACE enmInterface)
3373	{
3374	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
3375	PDRVMAINDISPLAY pDrv = PDMINS_2_DATA(pDrvIns, PDRVMAINDISPLAY);
3376	switch (enmInterface)
3377	{
3378	case PDMINTERFACE_BASE:
3379	return &pDrvIns->IBase;
3380	case PDMINTERFACE_DISPLAY_CONNECTOR:
3381	return &pDrv->Connector;
3382	default:
3383	return NULL;
3384	}
3385	}
3386
3387
3388	/**
3389	* Destruct a display driver instance.
3390	*
3391	* @returns VBox status.
3392	* @param pDrvIns The driver instance data.
3393	*/
3394	DECLCALLBACK(void) Display::drvDestruct(PPDMDRVINS pDrvIns)
3395	{
3396	PDRVMAINDISPLAY pData = PDMINS_2_DATA(pDrvIns, PDRVMAINDISPLAY);
3397	LogFlowFunc (("iInstance=%d\n", pDrvIns->iInstance));
3398	if (pData->pDisplay)
3399	{
3400	AutoWriteLock displayLock(pData->pDisplay COMMA_LOCKVAL_SRC_POS);
3401	pData->pDisplay->mpDrv = NULL;
3402	pData->pDisplay->mpVMMDev = NULL;
3403	pData->pDisplay->mLastAddress = NULL;
3404	pData->pDisplay->mLastBytesPerLine = 0;
3405	pData->pDisplay->mLastBitsPerPixel = 0,
3406	pData->pDisplay->mLastWidth = 0;
3407	pData->pDisplay->mLastHeight = 0;
3408	}
3409	}
3410
3411
3412	/**
3413	* Construct a display driver instance.
3414	*
3415	* @copydoc FNPDMDRVCONSTRUCT
3416	*/
3417	DECLCALLBACK(int) Display::drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfgHandle, uint32_t fFlags)
3418	{
3419	PDRVMAINDISPLAY pData = PDMINS_2_DATA(pDrvIns, PDRVMAINDISPLAY);
3420	LogFlowFunc (("iInstance=%d\n", pDrvIns->iInstance));
3421
3422	/*
3423	* Validate configuration.
3424	*/
3425	if (!CFGMR3AreValuesValid(pCfgHandle, "Object\0"))
3426	return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
3427	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
3428	("Configuration error: Not possible to attach anything to this driver!\n"),
3429	VERR_PDM_DRVINS_NO_ATTACH);
3430
3431	/*
3432	* Init Interfaces.
3433	*/
3434	pDrvIns->IBase.pfnQueryInterface = Display::drvQueryInterface;
3435
3436	pData->Connector.pfnResize = Display::displayResizeCallback;
3437	pData->Connector.pfnUpdateRect = Display::displayUpdateCallback;
3438	pData->Connector.pfnRefresh = Display::displayRefreshCallback;
3439	pData->Connector.pfnReset = Display::displayResetCallback;
3440	pData->Connector.pfnLFBModeChange = Display::displayLFBModeChangeCallback;
3441	pData->Connector.pfnProcessAdapterData = Display::displayProcessAdapterDataCallback;
3442	pData->Connector.pfnProcessDisplayData = Display::displayProcessDisplayDataCallback;
3443	#ifdef VBOX_WITH_VIDEOHWACCEL
3444	pData->Connector.pfnVHWACommandProcess = Display::displayVHWACommandProcess;
3445	#endif
3446	#ifdef VBOX_WITH_HGSMI
3447	pData->Connector.pfnVBVAEnable = Display::displayVBVAEnable;
3448	pData->Connector.pfnVBVADisable = Display::displayVBVADisable;
3449	pData->Connector.pfnVBVAUpdateBegin = Display::displayVBVAUpdateBegin;
3450	pData->Connector.pfnVBVAUpdateProcess = Display::displayVBVAUpdateProcess;
3451	pData->Connector.pfnVBVAUpdateEnd = Display::displayVBVAUpdateEnd;
3452	pData->Connector.pfnVBVAResize = Display::displayVBVAResize;
3453	pData->Connector.pfnVBVAMousePointerShape = Display::displayVBVAMousePointerShape;
3454	#endif
3455
3456
3457	/*
3458	* Get the IDisplayPort interface of the above driver/device.
3459	*/
3460	pData->pUpPort = (PPDMIDISPLAYPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_DISPLAY_PORT);
3461	if (!pData->pUpPort)
3462	{
3463	AssertMsgFailed(("Configuration error: No display port interface above!\n"));
3464	return VERR_PDM_MISSING_INTERFACE_ABOVE;
3465	}
3466	#if defined(VBOX_WITH_VIDEOHWACCEL)
3467	pData->pVBVACallbacks = (PPDMDDISPLAYVBVACALLBACKS)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_DISPLAY_VBVA_CALLBACKS);
3468	if (!pData->pVBVACallbacks)
3469	{
3470	AssertMsgFailed(("Configuration error: No VBVA callback interface above!\n"));
3471	return VERR_PDM_MISSING_INTERFACE_ABOVE;
3472	}
3473	#endif
3474	/*
3475	* Get the Display object pointer and update the mpDrv member.
3476	*/
3477	void *pv;
3478	int rc = CFGMR3QueryPtr(pCfgHandle, "Object", &pv);
3479	if (RT_FAILURE(rc))
3480	{
3481	AssertMsgFailed(("Configuration error: No/bad \"Object\" value! rc=%Rrc\n", rc));
3482	return rc;
3483	}
3484	pData->pDisplay = (Display )pv; /* @todo Check this cast! */
3485	pData->pDisplay->mpDrv = pData;
3486
3487	/*
3488	* Update our display information according to the framebuffer
3489	*/
3490	pData->pDisplay->updateDisplayData();
3491
3492	/*
3493	* Start periodic screen refreshes
3494	*/
3495	pData->pUpPort->pfnSetRefreshRate(pData->pUpPort, 20);
3496
3497	return VINF_SUCCESS;
3498	}
3499
3500
3501	/**
3502	* Display driver registration record.
3503	*/
3504	const PDMDRVREG Display::DrvReg =
3505	{
3506	/* u32Version */
3507	PDM_DRVREG_VERSION,
3508	/* szDriverName */
3509	"MainDisplay",
3510	/* pszDescription */
3511	"Main display driver (Main as in the API).",
3512	/* fFlags */
3513	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
3514	/* fClass. */
3515	PDM_DRVREG_CLASS_DISPLAY,
3516	/* cMaxInstances */
3517	~0,
3518	/* cbInstance */
3519	sizeof(DRVMAINDISPLAY),
3520	/* pfnConstruct */
3521	Display::drvConstruct,
3522	/* pfnDestruct */
3523	Display::drvDestruct,
3524	/* pfnIOCtl */
3525	NULL,
3526	/* pfnPowerOn */
3527	NULL,
3528	/* pfnReset */
3529	NULL,
3530	/* pfnSuspend */
3531	NULL,
3532	/* pfnResume */
3533	NULL,
3534	/* pfnAttach */
3535	NULL,
3536	/* pfnDetach */
3537	NULL,
3538	/* pfnPowerOff */
3539	NULL,
3540	/* pfnSoftReset */
3541	NULL,
3542	/* u32EndVersion */
3543	PDM_DRVREG_VERSION
3544	};
3545	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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