VBoxVideo.cpp@ 32127

Last change on this file since 32127 was 32039, checked in by vboxsync, 14 years ago
wddm: compile fix
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1	/*
2	* VirtualBox Video miniport driver for NT/2k/XP
3	*
4	* Based on DDK sample code.
5	*
6	* Copyright (C) 2006-2007 Oracle Corporation
7	*
8	* This file is part of VirtualBox Open Source Edition (OSE), as
9	* available from http://www.virtualbox.org. This file is free software;
10	* you can redistribute it and/or modify it under the terms of the GNU
11	* General Public License (GPL) as published by the Free Software
12	* Foundation, in version 2 as it comes in the "COPYING" file of the
13	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15	*/
16
17	#include "VBoxVideo.h"
18	#include "Helper.h"
19
20	#include <iprt/log.h>
21	#include <VBox/VMMDev.h>
22	#include <VBox/VBoxGuest.h>
23	#include <VBox/VBoxVideo.h>
24
25	#include <VBox/VBoxGuestLib.h>
26	#include <VBoxDisplay.h>
27
28	#if _MSC_VER >= 1400 /* bird: MS fixed swprintf to be standard-conforming... */
29	#define _INC_SWPRINTF_INL_
30	extern "C" int __cdecl swprintf(wchar_t , const wchar_t , ...);
31	#endif
32	#include <wchar.h>
33
34	#include "vboxioctl.h"
35
36
37	static WCHAR VBoxChipType[] = L"VBOX";
38	static WCHAR VBoxDACType[] = L"Integrated RAMDAC";
39	static WCHAR VBoxAdapterString[] = L"VirtualBox Video Adapter";
40	static WCHAR VBoxBiosString[] = L"Version 0xB0C2 or later";
41
42	VIDEO_ACCESS_RANGE VGARanges[] = {
43	{ 0x000003B0, 0x00000000, 0x0000000C, 1, 1, 1, 0 }, /* 0x3B0-0x3BB */
44	{ 0x000003C0, 0x00000000, 0x00000020, 1, 1, 1, 0 }, /* 0x3C0-0x3DF */
45	{ 0x000A0000, 0x00000000, 0x00020000, 0, 0, 1, 0 }, /* 0xA0000-0xBFFFF */
46	};
47	/*
48	* Globals for the last custom resolution set. This is important
49	* for system startup so that we report the last currently set
50	* custom resolution and Windows can use it again.
51	*/
52	#ifndef VBOX_WITH_MULTIMONITOR_FIX
53	ULONG gCustomXRes = 0;
54	ULONG gCustomYRes = 0;
55	ULONG gCustomBPP = 0;
56	#endif /* !VBOX_WITH_MULTIMONITOR_FIX */
57
58	int vboxVbvaEnable (PDEVICE_EXTENSION pDevExt, ULONG ulEnable, VBVAENABLERESULT *pVbvaResult);
59
60	#ifndef VBOXWDDM
61	ULONG DriverEntry(IN PVOID Context1, IN PVOID Context2)
62	{
63	VIDEO_HW_INITIALIZATION_DATA InitData;
64	ULONG rc;
65
66	dprintf(("VBoxVideo::DriverEntry. Built %s %s\n", __DATE__, __TIME__));
67
68	VideoPortZeroMemory(&InitData, sizeof(VIDEO_HW_INITIALIZATION_DATA));
69	InitData.HwInitDataSize = sizeof(VIDEO_HW_INITIALIZATION_DATA);
70	InitData.HwFindAdapter = VBoxVideoFindAdapter;
71	InitData.HwInitialize = VBoxVideoInitialize;
72	#if defined(VBOX_WITH_HGSMI) && defined(VBOX_WITH_VIDEOHWACCEL)
73	InitData.HwInterrupt = VBoxVideoInterrupt;
74	#else
75	InitData.HwInterrupt = NULL;
76	#endif
77	InitData.HwStartIO = VBoxVideoStartIO;
78	InitData.HwResetHw = VBoxVideoResetHW;
79	InitData.HwDeviceExtensionSize = 0;
80	// nowhere documented but without the following line, NT4 SP0 will choke
81	InitData.AdapterInterfaceType = PCIBus;
82	InitData.HwGetPowerState = VBoxVideoGetPowerState;
83	InitData.HwSetPowerState = VBoxVideoSetPowerState;
84	InitData.HwGetVideoChildDescriptor = VBoxVideoGetChildDescriptor;
85	InitData.HwDeviceExtensionSize = sizeof(DEVICE_EXTENSION);
86	// report legacy VGA resource ranges
87	InitData.HwLegacyResourceList = VGARanges;
88	InitData.HwLegacyResourceCount = sizeof(VGARanges) / sizeof(VGARanges[0]);
89
90	// our DDK is at the Win2k3 level so we have to take special measures
91	// for backwards compatibility
92	switch (vboxQueryWinVersion())
93	{
94	case WINNT4:
95	dprintf(("VBoxVideo::DriverEntry: WINNT4\n"));
96	InitData.HwInitDataSize = SIZE_OF_NT4_VIDEO_HW_INITIALIZATION_DATA;
97	break;
98	case WIN2K:
99	dprintf(("VBoxVideo::DriverEntry: WIN2K\n"));
100	InitData.HwInitDataSize = SIZE_OF_W2K_VIDEO_HW_INITIALIZATION_DATA;
101	break;
102	}
103	rc = VideoPortInitialize(Context1, Context2, &InitData, NULL);
104
105	dprintf(("VBoxVideo::DriverEntry: returning with rc = 0x%x\n", rc));
106	return rc;
107	}
108
109	/*+++
110
111	Routine Description:
112
113	This routine is used to read back various registry values.
114
115	Arguments:
116
117	HwDeviceExtension
118	Supplies a pointer to the miniport's device extension.
119
120	Context
121	Context value passed to the get registry parameters routine.
122	If this is not null assume it's a ULONG* and save the data value in it.
123
124	ValueName
125	Name of the value requested.
126
127	ValueData
128	Pointer to the requested data.
129
130	ValueLength
131	Length of the requested data.
132
133	Return Value:
134
135	If the variable doesn't exist return an error,
136	else if a context is supplied assume it's a PULONG and fill in the value
137	and return no error, else if the value is non-zero return an error.
138
139	---*/
140	VP_STATUS VBoxRegistryCallback(PVOID HwDeviceExtension, PVOID Context,
141	PWSTR ValueName, PVOID ValueData, ULONG ValueLength)
142	{
143	//dprintf(("VBoxVideo::VBoxRegistryCallback: Context: %p, ValueName: %S, ValueData: %p, ValueLength: %d\n",
144	// Context, ValueName, ValueData, ValueLength));
145	if (ValueLength)
146	{
147	if (Context)
148	(ULONG )Context = *(PULONG)ValueData;
149	else if (*((PULONG)ValueData) != 0)
150	return ERROR_INVALID_PARAMETER;
151	return NO_ERROR;
152	}
153	else
154	return ERROR_INVALID_PARAMETER;
155	}
156
157	VP_STATUS VBoxVideoCmnRegQueryDword(IN VBOXCMNREG Reg, PWSTR pName, uint32_t *pVal)
158	{
159	return VideoPortGetRegistryParameters(Reg, pName, FALSE, VBoxRegistryCallback, pVal);
160	}
161
162	VP_STATUS VBoxVideoCmnRegSetDword(IN VBOXCMNREG Reg, PWSTR pName, uint32_t Val)
163	{
164	return VideoPortSetRegistryParameters(Reg, pName, &Val, sizeof(Val));
165	}
166
167	#endif /* #ifndef VBOXWDDM */
168
169	/*
170	* Global list of supported standard video modes. It will be
171	* filled dynamically.
172	*/
173	#define MAX_VIDEO_MODES 128
174	#ifndef VBOX_WITH_MULTIMONITOR_FIX
175	static VIDEO_MODE_INFORMATION VideoModes[MAX_VIDEO_MODES + 2] = { 0 };
176	#else
177	/*
178	* Additional space is reserved for custom video modes for 64 guest monitors.
179	* The custom video mode index is alternating and 2 indexes are reserved for the last custom mode.
180	*/
181	static VIDEO_MODE_INFORMATION VideoModes[MAX_VIDEO_MODES + 64 + 2] = { 0 };
182	/* On the driver startup this is initialized from registry (replaces gCustom). /
183	static VIDEO_MODE_INFORMATION CustomVideoModes[64] = { 0 };
184	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
185	/* number of available video modes, set by VBoxBuildModesTable */
186	static uint32_t gNumVideoModes = 0;
187
188	#ifdef VBOX_WITH_MULTIMONITOR_FIX
189	static void initVideoModeInformation(VIDEO_MODE_INFORMATION *pVideoMode, ULONG xres, ULONG yres, ULONG bpp, ULONG index, ULONG yoffset)
190	{
191	/*
192	* Build mode entry.
193	*/
194	memset(pVideoMode, 0, sizeof(VIDEO_MODE_INFORMATION));
195
196	pVideoMode->Length = sizeof(VIDEO_MODE_INFORMATION);
197	pVideoMode->ModeIndex = index;
198	pVideoMode->VisScreenWidth = xres;
199	pVideoMode->VisScreenHeight = yres - yoffset;
200	pVideoMode->ScreenStride = xres * ((bpp + 7) / 8);
201	pVideoMode->NumberOfPlanes = 1;
202	pVideoMode->BitsPerPlane = bpp;
203	pVideoMode->Frequency = 60;
204	pVideoMode->XMillimeter = 320;
205	pVideoMode->YMillimeter = 240;
206	switch (bpp)
207	{
208	#ifdef VBOX_WITH_8BPP_MODES
209	case 8:
210	pVideoMode->NumberRedBits = 6;
211	pVideoMode->NumberGreenBits = 6;
212	pVideoMode->NumberBlueBits = 6;
213	pVideoMode->RedMask = 0;
214	pVideoMode->GreenMask = 0;
215	pVideoMode->BlueMask = 0;
216	break;
217	#endif
218	case 16:
219	pVideoMode->NumberRedBits = 5;
220	pVideoMode->NumberGreenBits = 6;
221	pVideoMode->NumberBlueBits = 5;
222	pVideoMode->RedMask = 0xF800;
223	pVideoMode->GreenMask = 0x7E0;
224	pVideoMode->BlueMask = 0x1F;
225	break;
226	case 24:
227	pVideoMode->NumberRedBits = 8;
228	pVideoMode->NumberGreenBits = 8;
229	pVideoMode->NumberBlueBits = 8;
230	pVideoMode->RedMask = 0xFF0000;
231	pVideoMode->GreenMask = 0xFF00;
232	pVideoMode->BlueMask = 0xFF;
233	break;
234	case 32:
235	pVideoMode->NumberRedBits = 8;
236	pVideoMode->NumberGreenBits = 8;
237	pVideoMode->NumberBlueBits = 8;
238	pVideoMode->RedMask = 0xFF0000;
239	pVideoMode->GreenMask = 0xFF00;
240	pVideoMode->BlueMask = 0xFF;
241	break;
242	}
243	pVideoMode->AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
244	#ifdef VBOX_WITH_8BPP_MODES
245	if (bpp == 8)
246	pVideoMode->AttributeFlags \|= VIDEO_MODE_PALETTE_DRIVEN \| VIDEO_MODE_MANAGED_PALETTE;
247	#endif
248	pVideoMode->VideoMemoryBitmapWidth = xres;
249	pVideoMode->VideoMemoryBitmapHeight = yres - yoffset;
250	pVideoMode->DriverSpecificAttributeFlags = 0;
251	}
252	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
253
254	#ifdef VBOXWDDM
255	/* preferred mode index */
256	static uint32_t gPreferredVideoMode = 0;
257
258	static D3DKMDT_2DREGION g_VBoxWddmVideoResolutions[RT_ELEMENTS(VideoModes)];
259	static uint32_t g_VBoxWddmNumResolutions;
260
261	DECLINLINE(int) vboxWddmRectComparator(const D3DKMDT_2DREGION pReg1, const D3DKMDT_2DREGION pReg2)
262	{
263	int tmp = pReg1->cx - pReg2->cx;
264	if(tmp)
265	return tmp;
266	tmp = pReg1->cy - pReg2->cy;
267	return tmp;
268	}
269
270	/* builds a g_VBoxWddmVideoResolutions given VideoModes info */
271	VOID vboxWddmBuildResolutionTable()
272	{
273	g_VBoxWddmNumResolutions = 0;
274
275	/* we don't care about the efficiency at this time */
276	for (uint32_t i = 0; i < gNumVideoModes; ++i)
277	{
278	VIDEO_MODE_INFORMATION *pMode = &VideoModes[i];
279	bool bFound = false;
280	for (uint32_t j = 0; j < g_VBoxWddmNumResolutions; ++j)
281	{
282	if (g_VBoxWddmVideoResolutions[j].cx == pMode->VisScreenWidth
283	&& g_VBoxWddmVideoResolutions[j].cy == pMode->VisScreenHeight)
284	{
285	bFound = true;
286	break;
287	}
288	}
289
290	if (!bFound)
291	{
292	Assert(g_VBoxWddmNumResolutions < RT_ELEMENTS(g_VBoxWddmVideoResolutions));
293	g_VBoxWddmVideoResolutions[g_VBoxWddmNumResolutions].cx = pMode->VisScreenWidth;
294	g_VBoxWddmVideoResolutions[g_VBoxWddmNumResolutions].cy = pMode->VisScreenHeight;
295	++g_VBoxWddmNumResolutions;
296	}
297	}
298	}
299	#endif
300
301	static uint32_t g_xresNoVRAM = 0, g_yresNoVRAM = 0, g_bppNoVRAM = 0;
302
303	/**
304	* Helper function to dynamically build our table of standard video
305	* modes. We take the amount of VRAM and create modes with standard
306	* geometries until we've either reached the maximum number of modes
307	* or the available VRAM does not allow for additional modes.
308	*/
309	VOID VBoxBuildModesTable(PDEVICE_EXTENSION DeviceExtension)
310	{
311	/* we need this static counter to always have a new mode index for our */
312	/* custom video mode, otherwise Windows thinks there is no mode switch */
313	static int gInvocationCounter = 0;
314
315	VBOXCMNREG Reg;
316	VBoxVideoCmnRegInit(DeviceExtension, &Reg);
317
318	/* the resolution matrix */
319	struct
320	{
321	uint16_t xRes;
322	uint16_t yRes;
323	} resolutionMatrix[] =
324	{
325	/* standard modes */
326	{ 640, 480 },
327	{ 800, 600 },
328	{ 1024, 768 },
329	{ 1152, 864 },
330	{ 1280, 960 },
331	{ 1280, 1024 },
332	{ 1400, 1050 },
333	{ 1600, 1200 },
334	{ 1920, 1440 },
335	/* multi screen modes with 1280x1024 */
336	{ 2560, 1024 },
337	{ 3840, 1024 },
338	{ 5120, 1024 },
339	/* multi screen modes with 1600x1200 */
340	{ 3200, 1200 },
341	{ 4800, 1200 },
342	{ 6400, 1200 },
343	};
344	size_t matrixSize = sizeof(resolutionMatrix) / sizeof(resolutionMatrix[0]);
345
346	/* there are 4 color depths: 8, 16, 24 and 32bpp and we reserve 50% of the modes for other sources */
347	size_t maxModesPerColorDepth = MAX_VIDEO_MODES / 2 / 4;
348
349	/* size of the VRAM in bytes */
350
351	#ifndef VBOXWDDM
352	ULONG vramSize = DeviceExtension->pPrimary->u.primary.ulMaxFrameBufferSize;
353	#else
354	ULONG vramSize = vboxWddmVramCpuVisibleSegmentSize(DeviceExtension);
355	#ifndef VBOXWDDM_RENDER_FROM_SHADOW
356	/* at least two surfaces will be needed: primary & shadow */
357	vramSize /= 2;
358	#endif
359
360	gPreferredVideoMode = 0;
361	#endif
362
363	gNumVideoModes = 0;
364
365	size_t numModesCurrentColorDepth;
366	size_t matrixIndex;
367	VP_STATUS status = 0;
368
369	/* Always add 800x600 video modes. Windows XP+ needs at least 800x600 resolution
370	* and fallbacks to 800x600x4bpp VGA mode if the driver did not report suitable modes.
371	* This resolution could be rejected by a low resolution host (netbooks, etc).
372	*/
373	int cBytesPerPixel;
374	for (cBytesPerPixel = 1; cBytesPerPixel <= 4; cBytesPerPixel++)
375	{
376	int cBitsPerPixel = cBytesPerPixel * 8; /* 8, 16, 24, 32 */
377
378	#ifndef VBOX_WITH_8BPP_MODES
379	if (cBitsPerPixel == 8)
380	{
381	continue;
382	}
383	#endif /* !VBOX_WITH_8BPP_MODES */
384
385	/* does the mode fit into the VRAM? */
386	if (800 * 600 * cBytesPerPixel > (LONG)vramSize)
387	{
388	continue;
389	}
390
391	VideoModes[gNumVideoModes].Length = sizeof(VIDEO_MODE_INFORMATION);
392	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
393	VideoModes[gNumVideoModes].VisScreenWidth = 800;
394	VideoModes[gNumVideoModes].VisScreenHeight = 600;
395	VideoModes[gNumVideoModes].ScreenStride = 800 * cBytesPerPixel;
396	VideoModes[gNumVideoModes].NumberOfPlanes = 1;
397	VideoModes[gNumVideoModes].BitsPerPlane = cBitsPerPixel;
398	VideoModes[gNumVideoModes].Frequency = 60;
399	VideoModes[gNumVideoModes].XMillimeter = 320;
400	VideoModes[gNumVideoModes].YMillimeter = 240;
401	switch (cBytesPerPixel)
402	{
403	case 1:
404	{
405	VideoModes[gNumVideoModes].NumberRedBits = 6;
406	VideoModes[gNumVideoModes].NumberGreenBits = 6;
407	VideoModes[gNumVideoModes].NumberBlueBits = 6;
408	VideoModes[gNumVideoModes].RedMask = 0;
409	VideoModes[gNumVideoModes].GreenMask = 0;
410	VideoModes[gNumVideoModes].BlueMask = 0;
411	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN \|
412	VIDEO_MODE_PALETTE_DRIVEN \| VIDEO_MODE_MANAGED_PALETTE;
413	} break;
414	case 2:
415	{
416	VideoModes[gNumVideoModes].NumberRedBits = 5;
417	VideoModes[gNumVideoModes].NumberGreenBits = 6;
418	VideoModes[gNumVideoModes].NumberBlueBits = 5;
419	VideoModes[gNumVideoModes].RedMask = 0xF800;
420	VideoModes[gNumVideoModes].GreenMask = 0x7E0;
421	VideoModes[gNumVideoModes].BlueMask = 0x1F;
422	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
423	} break;
424	case 3:
425	{
426	VideoModes[gNumVideoModes].NumberRedBits = 8;
427	VideoModes[gNumVideoModes].NumberGreenBits = 8;
428	VideoModes[gNumVideoModes].NumberBlueBits = 8;
429	VideoModes[gNumVideoModes].RedMask = 0xFF0000;
430	VideoModes[gNumVideoModes].GreenMask = 0xFF00;
431	VideoModes[gNumVideoModes].BlueMask = 0xFF;
432	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
433	} break;
434	default:
435	case 4:
436	{
437	VideoModes[gNumVideoModes].NumberRedBits = 8;
438	VideoModes[gNumVideoModes].NumberGreenBits = 8;
439	VideoModes[gNumVideoModes].NumberBlueBits = 8;
440	VideoModes[gNumVideoModes].RedMask = 0xFF0000;
441	VideoModes[gNumVideoModes].GreenMask = 0xFF00;
442	VideoModes[gNumVideoModes].BlueMask = 0xFF;
443	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
444	#ifdef VBOXWDDM
445	gPreferredVideoMode = gNumVideoModes;
446	#endif
447	} break;
448	}
449	VideoModes[gNumVideoModes].VideoMemoryBitmapWidth = 800;
450	VideoModes[gNumVideoModes].VideoMemoryBitmapHeight = 600;
451	VideoModes[gNumVideoModes].DriverSpecificAttributeFlags = 0;
452
453	/* a new mode has been filled in */
454	++gNumVideoModes;
455	}
456
457	/*
458	* Query the y-offset from the host
459	*/
460	ULONG yOffset = vboxGetHeightReduction();
461
462	#ifdef VBOX_WITH_8BPP_MODES
463	/*
464	* 8 bit video modes
465	*/
466	numModesCurrentColorDepth = 0;
467	matrixIndex = 0;
468	while (numModesCurrentColorDepth < maxModesPerColorDepth)
469	{
470	/* are there any modes left in the matrix? */
471	if (matrixIndex >= matrixSize)
472	break;
473
474	/* does the mode fit into the VRAM? */
475	if (resolutionMatrix[matrixIndex].xRes * resolutionMatrix[matrixIndex].yRes * 1 > (LONG)vramSize)
476	{
477	++matrixIndex;
478	continue;
479	}
480
481	if (yOffset == 0 && resolutionMatrix[matrixIndex].xRes == 800 && resolutionMatrix[matrixIndex].yRes == 600)
482	{
483	/* This mode was already added. */
484	++matrixIndex;
485	continue;
486	}
487
488	/* does the host like that mode? */
489	#ifndef VBOXWDDM
490	if (!vboxLikesVideoMode(DeviceExtension->iDevice, resolutionMatrix[matrixIndex].xRes, resolutionMatrix[matrixIndex].yRes - yOffset, 8))
491	#else
492	if (!vboxLikesVideoMode(0 /* @todo: */, resolutionMatrix[matrixIndex].xRes, resolutionMatrix[matrixIndex].yRes - yOffset, 8))
493	#endif
494	{
495	++matrixIndex;
496	continue;
497	}
498
499	VideoModes[gNumVideoModes].Length = sizeof(VIDEO_MODE_INFORMATION);
500	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
501	VideoModes[gNumVideoModes].VisScreenWidth = resolutionMatrix[matrixIndex].xRes;
502	VideoModes[gNumVideoModes].VisScreenHeight = resolutionMatrix[matrixIndex].yRes - yOffset;
503	VideoModes[gNumVideoModes].ScreenStride = resolutionMatrix[matrixIndex].xRes * 1;
504	VideoModes[gNumVideoModes].NumberOfPlanes = 1;
505	VideoModes[gNumVideoModes].BitsPerPlane = 8;
506	VideoModes[gNumVideoModes].Frequency = 60;
507	VideoModes[gNumVideoModes].XMillimeter = 320;
508	VideoModes[gNumVideoModes].YMillimeter = 240;
509	VideoModes[gNumVideoModes].NumberRedBits = 6;
510	VideoModes[gNumVideoModes].NumberGreenBits = 6;
511	VideoModes[gNumVideoModes].NumberBlueBits = 6;
512	VideoModes[gNumVideoModes].RedMask = 0;
513	VideoModes[gNumVideoModes].GreenMask = 0;
514	VideoModes[gNumVideoModes].BlueMask = 0;
515	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN \|
516	VIDEO_MODE_PALETTE_DRIVEN \| VIDEO_MODE_MANAGED_PALETTE;
517	VideoModes[gNumVideoModes].VideoMemoryBitmapWidth = resolutionMatrix[matrixIndex].xRes;
518	VideoModes[gNumVideoModes].VideoMemoryBitmapHeight = resolutionMatrix[matrixIndex].yRes - yOffset;
519	VideoModes[gNumVideoModes].DriverSpecificAttributeFlags = 0;
520
521	/* a new mode has been filled in */
522	++gNumVideoModes;
523	++numModesCurrentColorDepth;
524	/* advance to the next mode matrix entry */
525	++matrixIndex;
526	}
527	#endif /* VBOX_WITH_8BPP_MODES */
528
529	/*
530	* 16 bit video modes
531	*/
532	numModesCurrentColorDepth = 0;
533	matrixIndex = 0;
534	while (numModesCurrentColorDepth < maxModesPerColorDepth)
535	{
536	/* are there any modes left in the matrix? */
537	if (matrixIndex >= matrixSize)
538	break;
539
540	/* does the mode fit into the VRAM? */
541	if (resolutionMatrix[matrixIndex].xRes * resolutionMatrix[matrixIndex].yRes * 2 > (LONG)vramSize)
542	{
543	++matrixIndex;
544	continue;
545	}
546
547	if (yOffset == 0 && resolutionMatrix[matrixIndex].xRes == 800 && resolutionMatrix[matrixIndex].yRes == 600)
548	{
549	/* This mode was already added. */
550	++matrixIndex;
551	continue;
552	}
553
554	/* does the host like that mode? */
555	#ifndef VBOXWDDM
556	if (!vboxLikesVideoMode(DeviceExtension->iDevice, resolutionMatrix[matrixIndex].xRes, resolutionMatrix[matrixIndex].yRes - yOffset, 16))
557	#else
558	if (!vboxLikesVideoMode(0 /* @todo: */, resolutionMatrix[matrixIndex].xRes, resolutionMatrix[matrixIndex].yRes - yOffset, 16))
559	#endif
560
561	{
562	++matrixIndex;
563	continue;
564	}
565
566	VideoModes[gNumVideoModes].Length = sizeof(VIDEO_MODE_INFORMATION);
567	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
568	VideoModes[gNumVideoModes].VisScreenWidth = resolutionMatrix[matrixIndex].xRes;
569	VideoModes[gNumVideoModes].VisScreenHeight = resolutionMatrix[matrixIndex].yRes - yOffset;
570	VideoModes[gNumVideoModes].ScreenStride = resolutionMatrix[matrixIndex].xRes * 2;
571	VideoModes[gNumVideoModes].NumberOfPlanes = 1;
572	VideoModes[gNumVideoModes].BitsPerPlane = 16;
573	VideoModes[gNumVideoModes].Frequency = 60;
574	VideoModes[gNumVideoModes].XMillimeter = 320;
575	VideoModes[gNumVideoModes].YMillimeter = 240;
576	VideoModes[gNumVideoModes].NumberRedBits = 5;
577	VideoModes[gNumVideoModes].NumberGreenBits = 6;
578	VideoModes[gNumVideoModes].NumberBlueBits = 5;
579	VideoModes[gNumVideoModes].RedMask = 0xF800;
580	VideoModes[gNumVideoModes].GreenMask = 0x7E0;
581	VideoModes[gNumVideoModes].BlueMask = 0x1F;
582	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
583	VideoModes[gNumVideoModes].VideoMemoryBitmapWidth = resolutionMatrix[matrixIndex].xRes;
584	VideoModes[gNumVideoModes].VideoMemoryBitmapHeight = resolutionMatrix[matrixIndex].yRes - yOffset;
585	VideoModes[gNumVideoModes].DriverSpecificAttributeFlags = 0;
586
587	/* a new mode has been filled in */
588	++gNumVideoModes;
589	++numModesCurrentColorDepth;
590	/* advance to the next mode matrix entry */
591	++matrixIndex;
592	}
593
594	/*
595	* 24 bit video modes
596	*/
597	numModesCurrentColorDepth = 0;
598	matrixIndex = 0;
599	while (numModesCurrentColorDepth < maxModesPerColorDepth)
600	{
601	/* are there any modes left in the matrix? */
602	if (matrixIndex >= matrixSize)
603	break;
604
605	/* does the mode fit into the VRAM? */
606	if (resolutionMatrix[matrixIndex].xRes * resolutionMatrix[matrixIndex].yRes * 3 > (LONG)vramSize)
607	{
608	++matrixIndex;
609	continue;
610	}
611
612	if (yOffset == 0 && resolutionMatrix[matrixIndex].xRes == 800 && resolutionMatrix[matrixIndex].yRes == 600)
613	{
614	/* This mode was already added. */
615	++matrixIndex;
616	continue;
617	}
618
619	/* does the host like that mode? */
620	#ifndef VBOXWDDM
621	if (!vboxLikesVideoMode(DeviceExtension->iDevice, resolutionMatrix[matrixIndex].xRes, resolutionMatrix[matrixIndex].yRes - yOffset, 24))
622	#else
623	if (!vboxLikesVideoMode(0, resolutionMatrix[matrixIndex].xRes, resolutionMatrix[matrixIndex].yRes - yOffset, 24))
624	#endif
625	{
626	++matrixIndex;
627	continue;
628	}
629
630	VideoModes[gNumVideoModes].Length = sizeof(VIDEO_MODE_INFORMATION);
631	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
632	VideoModes[gNumVideoModes].VisScreenWidth = resolutionMatrix[matrixIndex].xRes;
633	VideoModes[gNumVideoModes].VisScreenHeight = resolutionMatrix[matrixIndex].yRes - yOffset;
634	VideoModes[gNumVideoModes].ScreenStride = resolutionMatrix[matrixIndex].xRes * 3;
635	VideoModes[gNumVideoModes].NumberOfPlanes = 1;
636	VideoModes[gNumVideoModes].BitsPerPlane = 24;
637	VideoModes[gNumVideoModes].Frequency = 60;
638	VideoModes[gNumVideoModes].XMillimeter = 320;
639	VideoModes[gNumVideoModes].YMillimeter = 240;
640	VideoModes[gNumVideoModes].NumberRedBits = 8;
641	VideoModes[gNumVideoModes].NumberGreenBits = 8;
642	VideoModes[gNumVideoModes].NumberBlueBits = 8;
643	VideoModes[gNumVideoModes].RedMask = 0xFF0000;
644	VideoModes[gNumVideoModes].GreenMask = 0xFF00;
645	VideoModes[gNumVideoModes].BlueMask = 0xFF;
646	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
647	VideoModes[gNumVideoModes].VideoMemoryBitmapWidth = resolutionMatrix[matrixIndex].xRes;
648	VideoModes[gNumVideoModes].VideoMemoryBitmapHeight = resolutionMatrix[matrixIndex].yRes - yOffset;
649	VideoModes[gNumVideoModes].DriverSpecificAttributeFlags = 0;
650
651	/* a new mode has been filled in */
652	++gNumVideoModes;
653	++numModesCurrentColorDepth;
654	/* advance to the next mode matrix entry */
655	++matrixIndex;
656	}
657
658	/*
659	* 32 bit video modes
660	*/
661	numModesCurrentColorDepth = 0;
662	matrixIndex = 0;
663	while (numModesCurrentColorDepth < maxModesPerColorDepth)
664	{
665	/* are there any modes left in the matrix? */
666	if (matrixIndex >= matrixSize)
667	break;
668
669	/* does the mode fit into the VRAM? */
670	if (resolutionMatrix[matrixIndex].xRes * resolutionMatrix[matrixIndex].yRes * 4 > (LONG)vramSize)
671	{
672	++matrixIndex;
673	continue;
674	}
675
676	if (yOffset == 0 && resolutionMatrix[matrixIndex].xRes == 800 && resolutionMatrix[matrixIndex].yRes == 600)
677	{
678	/* This mode was already added. */
679	++matrixIndex;
680	continue;
681	}
682
683	/* does the host like that mode? */
684	#ifndef VBOXWDDM
685	if (!vboxLikesVideoMode(DeviceExtension->iDevice, resolutionMatrix[matrixIndex].xRes, resolutionMatrix[matrixIndex].yRes - yOffset, 32))
686	#else
687	if (!vboxLikesVideoMode(0, resolutionMatrix[matrixIndex].xRes, resolutionMatrix[matrixIndex].yRes - yOffset, 32))
688	#endif
689	{
690	++matrixIndex;
691	continue;
692	}
693
694	VideoModes[gNumVideoModes].Length = sizeof(VIDEO_MODE_INFORMATION);
695	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
696	VideoModes[gNumVideoModes].VisScreenWidth = resolutionMatrix[matrixIndex].xRes;
697	VideoModes[gNumVideoModes].VisScreenHeight = resolutionMatrix[matrixIndex].yRes - yOffset;
698	VideoModes[gNumVideoModes].ScreenStride = resolutionMatrix[matrixIndex].xRes * 4;
699	VideoModes[gNumVideoModes].NumberOfPlanes = 1;
700	VideoModes[gNumVideoModes].BitsPerPlane = 32;
701	VideoModes[gNumVideoModes].Frequency = 60;
702	VideoModes[gNumVideoModes].XMillimeter = 320;
703	VideoModes[gNumVideoModes].YMillimeter = 240;
704	VideoModes[gNumVideoModes].NumberRedBits = 8;
705	VideoModes[gNumVideoModes].NumberGreenBits = 8;
706	VideoModes[gNumVideoModes].NumberBlueBits = 8;
707	VideoModes[gNumVideoModes].RedMask = 0xFF0000;
708	VideoModes[gNumVideoModes].GreenMask = 0xFF00;
709	VideoModes[gNumVideoModes].BlueMask = 0xFF;
710	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
711	VideoModes[gNumVideoModes].VideoMemoryBitmapWidth = resolutionMatrix[matrixIndex].xRes;
712	VideoModes[gNumVideoModes].VideoMemoryBitmapHeight = resolutionMatrix[matrixIndex].yRes - yOffset;
713	VideoModes[gNumVideoModes].DriverSpecificAttributeFlags = 0;
714
715	/* a new mode has been filled in */
716	++gNumVideoModes;
717	++numModesCurrentColorDepth;
718	/* advance to the next mode matrix entry */
719	++matrixIndex;
720	}
721
722	/*
723	* Next, check the registry for additional modes
724	*/
725	int curKeyNo = 0;
726	#ifdef VBOXWDDM
727	int fPreferredSet = 0;
728	#endif
729	do
730	{
731	/* check if there is space in the mode list */
732	if (gNumVideoModes >= MAX_VIDEO_MODES)
733	break;
734
735	wchar_t keyname[24];
736	uint32_t xres, yres, bpp = 0;
737	swprintf(keyname, L"CustomMode%dWidth", curKeyNo);
738	status = VBoxVideoCmnRegQueryDword(Reg, keyname, &xres);
739	/* upon the first error, we give up */
740	if (status != NO_ERROR)
741	break;
742	swprintf(keyname, L"CustomMode%dHeight", curKeyNo);
743	status = VBoxVideoCmnRegQueryDword(Reg, keyname, &yres);
744	/* upon the first error, we give up */
745	if (status != NO_ERROR)
746	break;
747	swprintf(keyname, L"CustomMode%dBPP", curKeyNo);
748	status = VBoxVideoCmnRegQueryDword(Reg, keyname, &bpp);
749	/* upon the first error, we give up */
750	if (status != NO_ERROR)
751	break;
752
753	dprintf(("VBoxVideo: custom mode %u returned: xres = %u, yres = %u, bpp = %u\n",
754	curKeyNo, xres, yres, bpp));
755
756	/* first test: do the values make sense? */
757	if ( (xres > (1 << 16))
758	\|\| (yres > (1 << 16))
759	\|\| ( (bpp != 16)
760	&& (bpp != 24)
761	&& (bpp != 32)))
762	break;
763
764	/* round down width to be a multiple of 8 */
765	xres &= 0xFFF8;
766
767	/* second test: does it fit within our VRAM? */
768	if (xres * yres * (bpp / 8) > vramSize)
769	break;
770
771	/* third test: does the host like the video mode? */
772	#ifndef VBOXWDDM
773	if (!vboxLikesVideoMode(DeviceExtension->iDevice, xres, yres, bpp))
774	#else
775	if (!vboxLikesVideoMode(0, xres, yres, bpp))
776	#endif
777	break;
778
779	dprintf(("VBoxVideo: adding mode from registry: xres = %d, yres = %d, bpp = %d\n", xres, yres, bpp));
780
781	#ifdef VBOXWDDM
782	if (!fPreferredSet)
783	{
784	gPreferredVideoMode = gNumVideoModes;
785	fPreferredSet = 1;
786	}
787	#endif
788	/*
789	* Build mode entry.
790	* Note that we have to apply the y offset for the custom mode.
791	*/
792	VideoModes[gNumVideoModes].Length = sizeof(VIDEO_MODE_INFORMATION);
793	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
794	VideoModes[gNumVideoModes].VisScreenWidth = xres;
795	VideoModes[gNumVideoModes].VisScreenHeight = yres - yOffset;
796	VideoModes[gNumVideoModes].ScreenStride = xres * (bpp / 8);
797	VideoModes[gNumVideoModes].NumberOfPlanes = 1;
798	VideoModes[gNumVideoModes].BitsPerPlane = bpp;
799	VideoModes[gNumVideoModes].Frequency = 60;
800	VideoModes[gNumVideoModes].XMillimeter = 320;
801	VideoModes[gNumVideoModes].YMillimeter = 240;
802	switch (bpp)
803	{
804	case 16:
805	VideoModes[gNumVideoModes].NumberRedBits = 5;
806	VideoModes[gNumVideoModes].NumberGreenBits = 6;
807	VideoModes[gNumVideoModes].NumberBlueBits = 5;
808	VideoModes[gNumVideoModes].RedMask = 0xF800;
809	VideoModes[gNumVideoModes].GreenMask = 0x7E0;
810	VideoModes[gNumVideoModes].BlueMask = 0x1F;
811	break;
812	case 24:
813	VideoModes[gNumVideoModes].NumberRedBits = 8;
814	VideoModes[gNumVideoModes].NumberGreenBits = 8;
815	VideoModes[gNumVideoModes].NumberBlueBits = 8;
816	VideoModes[gNumVideoModes].RedMask = 0xFF0000;
817	VideoModes[gNumVideoModes].GreenMask = 0xFF00;
818	VideoModes[gNumVideoModes].BlueMask = 0xFF;
819	break;
820	case 32:
821	VideoModes[gNumVideoModes].NumberRedBits = 8;
822	VideoModes[gNumVideoModes].NumberGreenBits = 8;
823	VideoModes[gNumVideoModes].NumberBlueBits = 8;
824	VideoModes[gNumVideoModes].RedMask = 0xFF0000;
825	VideoModes[gNumVideoModes].GreenMask = 0xFF00;
826	VideoModes[gNumVideoModes].BlueMask = 0xFF;
827	#ifdef VBOXWDDM
828	/* 32-bit mode is more preferable, select it if not yet */
829	if (fPreferredSet < 2)
830	{
831	gPreferredVideoMode = gNumVideoModes;
832	fPreferredSet = 2;
833	}
834	#endif
835	break;
836	}
837	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
838	VideoModes[gNumVideoModes].VideoMemoryBitmapWidth = xres;
839	VideoModes[gNumVideoModes].VideoMemoryBitmapHeight = yres - yOffset;
840	VideoModes[gNumVideoModes].DriverSpecificAttributeFlags = 0;
841	++gNumVideoModes;
842
843	/* next run */
844	curKeyNo++;
845	/* only support 128 modes for now */
846	if (curKeyNo >= 128)
847	break;
848
849	} while(1);
850
851	/*
852	* Now we ask the host for a display change request. If there's one,
853	* this will be appended as a special mode so that it can be used by
854	* the Additions service process. The mode table is guaranteed to have
855	* two spare entries for this mode (alternating index thus 2).
856	*
857	* ... or ...
858	*
859	* Also we check if we got an user-stored custom resolution in the adapter
860	* registry key add it to the modes table.
861	*/
862
863	#ifdef VBOX_WITH_MULTIMONITOR_FIX
864	/* Add custom resolutions for each display and then for the display change request, if exists.
865	*/
866	BOOLEAN fDisplayChangeRequest = FALSE;
867
868	uint32_t xres = 0, yres = 0, bpp = 0, display = 0;
869	if ( vboxQueryDisplayRequest(&xres, &yres, &bpp, &display)
870	&& (xres \|\| yres \|\| bpp))
871	{
872	/* There is a pending display change request. */
873	fDisplayChangeRequest = TRUE;
874	}
875	if (display > RT_ELEMENTS(CustomVideoModes))
876	{
877	display = RT_ELEMENTS(CustomVideoModes) - 1;
878	}
879
880	dprintf(("display = %d, DeviceExtension->iDevice = %d\n", display, DeviceExtension->iDevice));
881	if (display != DeviceExtension->iDevice)
882	{
883	/* No need to go through the custom mode logic. And no need to clear the custom mode
884	* entry in the next 'for' loop.
885	*/
886	fDisplayChangeRequest = FALSE;
887	}
888
889	dprintf(("VBoxVideo: fDisplayChangeRequest = %d\n", fDisplayChangeRequest));
890
891	/*
892	* Reinsert custom video modes for all displays.
893	*/
894	int iCustomMode;
895	for (iCustomMode = 0; iCustomMode < DeviceExtension->pPrimary->u.primary.cDisplays; iCustomMode++)
896	{
897	if (fDisplayChangeRequest && iCustomMode == display)
898	{
899	/* Do not keep info for this display, which received a video mode hint, to make sure that
900	* the new mode will be taken from the alternating index entries actually.
901	*/
902	memcpy(&VideoModes[gNumVideoModes], &VideoModes[3], sizeof(VIDEO_MODE_INFORMATION));
903	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
904	}
905	else
906	{
907	VideoModes[gNumVideoModes] = CustomVideoModes[iCustomMode];
908	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
909	}
910	#ifdef LOG_ENABLED
911	dprintf(("Custom mode for %2d: %4d x %4d @ %2d\n",
912	iCustomMode, CustomVideoModes[iCustomMode].VisScreenWidth,
913	CustomVideoModes[iCustomMode].VisScreenHeight, CustomVideoModes[iCustomMode].BitsPerPlane));
914	#endif
915	gNumVideoModes++;
916	}
917
918	if (display != DeviceExtension->iDevice)
919	{
920	/* The display change is for another monitor. Just add 2 standard modes to the table
921	* to make enough entries. This is not necessary if it is a first mode set (CurrentMode == 0),
922	* because these 2 entries will be added by "if (fDisplayChangeRequest \|\| DeviceExtension->CurrentMode == 0)"
923	* code branch.
924	*/
925	if (DeviceExtension->CurrentMode != 0)
926	{
927	dprintf(("Filling custom mode entries.\n"));
928	memcpy(&VideoModes[gNumVideoModes], &VideoModes[3], sizeof(VIDEO_MODE_INFORMATION));
929	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
930	gNumVideoModes++;
931	memcpy(&VideoModes[gNumVideoModes], &VideoModes[3], sizeof(VIDEO_MODE_INFORMATION));
932	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
933	gNumVideoModes++;
934	}
935	}
936	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
937
938	#ifndef VBOX_WITH_MULTIMONITOR_FIX
939	uint32_t xres = 0, yres = 0, bpp = 0, display = 0;
940	if ( ( vboxQueryDisplayRequest(&xres, &yres, &bpp, &display)
941	&& (xres \|\| yres \|\| bpp))
942	\|\| (gCustomXRes \|\| gCustomYRes \|\| gCustomBPP))
943	#else
944	if (fDisplayChangeRequest \|\| DeviceExtension->CurrentMode == 0)
945	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
946	{
947	#ifndef VBOXWDDM
948	dprintf(("VBoxVideo: adding custom video mode as #%d, current mode: %d \n", gNumVideoModes + 1, DeviceExtension->CurrentMode));
949	/* handle the startup case */
950	if (DeviceExtension->CurrentMode == 0)
951	#else
952	if (!DeviceExtension->u.primary.cDisplays \|\| !DeviceExtension->aSources[0].pPrimaryAllocation)
953	#endif
954	{
955	/* Use the stored custom resolution values only if nothing was read from host.
956	* The custom mode might be not valid anymore and would block any hints from host.
957	*/
958	#ifndef VBOX_WITH_MULTIMONITOR_FIX
959	if (!xres)
960	xres = gCustomXRes;
961	if (!yres)
962	yres = gCustomYRes;
963	if (!bpp)
964	bpp = gCustomBPP;
965	dprintf(("VBoxVideo: using stored custom resolution %dx%dx%d\n", xres, yres, bpp));
966	#else
967	if (!xres)
968	xres = CustomVideoModes[DeviceExtension->iDevice].VisScreenWidth;
969	if (!yres)
970	yres = CustomVideoModes[DeviceExtension->iDevice].VisScreenHeight;
971	if (!bpp)
972	bpp = CustomVideoModes[DeviceExtension->iDevice].BitsPerPlane;
973	dprintf(("VBoxVideo: using stored custom resolution %dx%dx%d for %d\n", xres, yres, bpp, DeviceExtension->iDevice));
974	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
975	}
976	/* round down to multiple of 8 */
977	if ((xres & 0xfff8) != xres)
978	dprintf(("VBoxVideo: rounding down xres from %d to %d\n", xres, xres & 0xfff8));
979	xres &= 0xfff8;
980	/* take the current values for the fields that are not set */
981	#ifndef VBOXWDDM
982	if (DeviceExtension->CurrentMode != 0)
983	{
984	if (!xres)
985	xres = DeviceExtension->CurrentModeWidth;
986	if (!yres)
987	yres = DeviceExtension->CurrentModeHeight;
988	if (!bpp)
989	bpp = DeviceExtension->CurrentModeBPP;
990	}
991	#else
992	if (DeviceExtension->u.primary.cDisplays && DeviceExtension->aSources[0].pPrimaryAllocation)
993	{
994	if (!xres)
995	xres = DeviceExtension->aSources[0].pPrimaryAllocation->SurfDesc.width;
996	if (!yres)
997	yres = DeviceExtension->aSources[0].pPrimaryAllocation->SurfDesc.height;
998	if (!bpp)
999	bpp = DeviceExtension->aSources[0].pPrimaryAllocation->SurfDesc.bpp;
1000	}
1001	#endif
1002
1003	/* Use a default value. */
1004	if (!bpp)
1005	bpp = 32;
1006
1007	/* does the host like that mode? */
1008	#ifndef VBOXWDDM
1009	if (vboxLikesVideoMode(DeviceExtension->iDevice, xres, yres, bpp))
1010	#else
1011	if (vboxLikesVideoMode(0, xres, yres, bpp))
1012	#endif
1013	{
1014	/* we must have a valid video mode by now and it must fit within the VRAM */
1015	if ( ( xres
1016	&& yres
1017	&& ( (bpp == 16)
1018	#ifdef VBOX_WITH_8BPP_MODES
1019	\|\| (bpp == 8)
1020	#endif
1021	\|\| (bpp == 24)
1022	\|\| (bpp == 32)))
1023	&& (xres * yres * (bpp / 8) < vramSize))
1024
1025	{
1026	/* we need an alternating index */
1027	#ifdef VBOX_WITH_MULTIMONITOR_FIX
1028	/* Only alternate index if the new custom mode differs from the last one
1029	* (only resolution and bpp changes are important, a display change does not matter).
1030	* Always add 2 last entries to the mode array, so number of video modes
1031	* do not change.
1032	*/
1033	BOOLEAN fNewInvocation = FALSE;
1034	static uint32_t sPrev_xres = 0;
1035	static uint32_t sPrev_yres = 0;
1036	static uint32_t sPrev_bpp = 0;
1037	if ( sPrev_xres != xres
1038	\|\| sPrev_yres != yres
1039	\|\| sPrev_bpp != bpp)
1040	{
1041	sPrev_xres = xres;
1042	sPrev_yres = yres;
1043	sPrev_bpp = bpp;
1044	fNewInvocation = TRUE;
1045	}
1046	BOOLEAN fAlternatedIndex = FALSE;
1047	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
1048	#ifndef VBOXWDDM
1049	if (DeviceExtension->CurrentMode != 0)
1050	#else
1051	if (DeviceExtension->u.primary.cDisplays && DeviceExtension->aSources[0].pPrimaryAllocation)
1052	#endif
1053	#ifndef VBOX_WITH_MULTIMONITOR_FIX
1054	{
1055	if (gInvocationCounter % 2)
1056	gNumVideoModes++;
1057	gInvocationCounter++;
1058	}
1059	#else
1060	{
1061	if (fNewInvocation)
1062	gInvocationCounter++;
1063	if (gInvocationCounter % 2)
1064	{
1065	fAlternatedIndex = TRUE;
1066
1067	memcpy(&VideoModes[gNumVideoModes], &VideoModes[3], sizeof(VIDEO_MODE_INFORMATION));
1068	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
1069	gNumVideoModes++;
1070	}
1071	}
1072	else
1073	{
1074	fNewInvocation = FALSE;
1075	}
1076	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
1077
1078	dprintf(("VBoxVideo: setting special mode to xres = %d, yres = %d, bpp = %d, display = %d\n", xres, yres, bpp, display));
1079	#ifdef VBOX_WITH_MULTIMONITOR_FIX
1080	dprintf(("VBoxVideo: fNewInvocation = %d, fAlternatedIndex = %d\n", fNewInvocation, fAlternatedIndex));
1081	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
1082	#ifdef VBOXWDDM
1083	/* assign host-supplied as the most preferable */
1084	gPreferredVideoMode = gNumVideoModes;
1085	#endif
1086	/*
1087	* Build mode entry.
1088	* Note that we do not apply the y offset for the custom mode. It is
1089	* only used for the predefined modes that the user can configure in
1090	* the display properties dialog.
1091	*/
1092	VideoModes[gNumVideoModes].Length = sizeof(VIDEO_MODE_INFORMATION);
1093	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
1094	VideoModes[gNumVideoModes].VisScreenWidth = xres;
1095	VideoModes[gNumVideoModes].VisScreenHeight = yres;
1096	VideoModes[gNumVideoModes].ScreenStride = xres * (bpp / 8);
1097	VideoModes[gNumVideoModes].NumberOfPlanes = 1;
1098	VideoModes[gNumVideoModes].BitsPerPlane = bpp;
1099	VideoModes[gNumVideoModes].Frequency = 60;
1100	VideoModes[gNumVideoModes].XMillimeter = 320;
1101	VideoModes[gNumVideoModes].YMillimeter = 240;
1102	switch (bpp)
1103	{
1104	#ifdef VBOX_WITH_8BPP_MODES
1105	case 8:
1106	VideoModes[gNumVideoModes].NumberRedBits = 6;
1107	VideoModes[gNumVideoModes].NumberGreenBits = 6;
1108	VideoModes[gNumVideoModes].NumberBlueBits = 6;
1109	VideoModes[gNumVideoModes].RedMask = 0;
1110	VideoModes[gNumVideoModes].GreenMask = 0;
1111	VideoModes[gNumVideoModes].BlueMask = 0;
1112	break;
1113	#endif
1114	case 16:
1115	VideoModes[gNumVideoModes].NumberRedBits = 5;
1116	VideoModes[gNumVideoModes].NumberGreenBits = 6;
1117	VideoModes[gNumVideoModes].NumberBlueBits = 5;
1118	VideoModes[gNumVideoModes].RedMask = 0xF800;
1119	VideoModes[gNumVideoModes].GreenMask = 0x7E0;
1120	VideoModes[gNumVideoModes].BlueMask = 0x1F;
1121	break;
1122	case 24:
1123	VideoModes[gNumVideoModes].NumberRedBits = 8;
1124	VideoModes[gNumVideoModes].NumberGreenBits = 8;
1125	VideoModes[gNumVideoModes].NumberBlueBits = 8;
1126	VideoModes[gNumVideoModes].RedMask = 0xFF0000;
1127	VideoModes[gNumVideoModes].GreenMask = 0xFF00;
1128	VideoModes[gNumVideoModes].BlueMask = 0xFF;
1129	break;
1130	case 32:
1131	VideoModes[gNumVideoModes].NumberRedBits = 8;
1132	VideoModes[gNumVideoModes].NumberGreenBits = 8;
1133	VideoModes[gNumVideoModes].NumberBlueBits = 8;
1134	VideoModes[gNumVideoModes].RedMask = 0xFF0000;
1135	VideoModes[gNumVideoModes].GreenMask = 0xFF00;
1136	VideoModes[gNumVideoModes].BlueMask = 0xFF;
1137	break;
1138	}
1139	VideoModes[gNumVideoModes].AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
1140	#ifdef VBOX_WITH_8BPP_MODES
1141	if (bpp == 8)
1142	VideoModes[gNumVideoModes].AttributeFlags \|= VIDEO_MODE_PALETTE_DRIVEN \| VIDEO_MODE_MANAGED_PALETTE;
1143	#endif
1144	VideoModes[gNumVideoModes].VideoMemoryBitmapWidth = xres;
1145	VideoModes[gNumVideoModes].VideoMemoryBitmapHeight = yres;
1146	VideoModes[gNumVideoModes].DriverSpecificAttributeFlags = 0;
1147	#ifdef VBOX_WITH_MULTIMONITOR_FIX
1148	/* Save the mode in the list of custom modes for this display. */
1149	CustomVideoModes[DeviceExtension->iDevice] = VideoModes[gNumVideoModes];
1150	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
1151	++gNumVideoModes;
1152
1153	/* for the startup case, we need this mode twice due to the alternating mode number */
1154	#ifndef VBOXWDDM
1155	if (DeviceExtension->CurrentMode == 0)
1156	#else
1157	if (!DeviceExtension->u.primary.cDisplays \|\| !DeviceExtension->aSources[0].pPrimaryAllocation)
1158	#endif
1159	{
1160	dprintf(("VBoxVideo: making a copy of the custom mode as #%d\n", gNumVideoModes + 1));
1161	memcpy(&VideoModes[gNumVideoModes], &VideoModes[gNumVideoModes - 1], sizeof(VIDEO_MODE_INFORMATION));
1162	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
1163	gNumVideoModes++;
1164	}
1165	#ifdef VBOX_WITH_MULTIMONITOR_FIX
1166	else if (!fAlternatedIndex)
1167	{
1168	dprintf(("VBoxVideo: making a copy of the custom mode as #%d\n", gNumVideoModes + 1));
1169	memcpy(&VideoModes[gNumVideoModes], &VideoModes[3], sizeof(VIDEO_MODE_INFORMATION));
1170	VideoModes[gNumVideoModes].ModeIndex = gNumVideoModes + 1;
1171	gNumVideoModes++;
1172	}
1173	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
1174
1175	#ifndef VBOX_WITH_MULTIMONITOR_FIX
1176	/* store this video mode as the last custom video mode */
1177	status = VBoxVideoCmnRegSetDword(Reg, L"CustomXRes", xres);
1178	if (status != NO_ERROR)
1179	dprintf(("VBoxVideo: error %d writing CustomXRes\n", status));
1180	status = VBoxVideoCmnRegSetDword(Reg, L"CustomYRes", yres);
1181	if (status != NO_ERROR)
1182	dprintf(("VBoxVideo: error %d writing CustomYRes\n", status));
1183	status = VBoxVideoCmnRegSetDword(Reg, L"CustomBPP", bpp);
1184	if (status != NO_ERROR)
1185	dprintf(("VBoxVideo: error %d writing CustomBPP\n", status));
1186	#else
1187	/* Save the custom mode for this display. */
1188	if (DeviceExtension->iDevice == 0)
1189	{
1190	/* Name without a suffix */
1191	status = VBoxVideoCmnRegSetDword(Reg, L"CustomXRes", xres);
1192	if (status != NO_ERROR)
1193	dprintf(("VBoxVideo: error %d writing CustomXRes\n", status));
1194	status = VBoxVideoCmnRegSetDword(Reg, L"CustomYRes", yres);
1195	if (status != NO_ERROR)
1196	dprintf(("VBoxVideo: error %d writing CustomYRes\n", status));
1197	status = VBoxVideoCmnRegSetDword(Reg, L"CustomBPP", bpp);
1198	if (status != NO_ERROR)
1199	dprintf(("VBoxVideo: error %d writing CustomBPP\n", status));
1200	}
1201	else
1202	{
1203	wchar_t keyname[32];
1204	swprintf(keyname, L"CustomXRes%d", DeviceExtension->iDevice);
1205	status = VBoxVideoCmnRegSetDword(Reg, keyname, xres);
1206	if (status != NO_ERROR)
1207	dprintf(("VBoxVideo: error %d writing CustomXRes%d\n", status, DeviceExtension->iDevice));
1208	swprintf(keyname, L"CustomYRes%d", DeviceExtension->iDevice);
1209	status = VBoxVideoCmnRegSetDword(Reg, keyname, yres);
1210	if (status != NO_ERROR)
1211	dprintf(("VBoxVideo: error %d writing CustomYRes%d\n", status, DeviceExtension->iDevice));
1212	swprintf(keyname, L"CustomBPP%d", DeviceExtension->iDevice);
1213	status = VBoxVideoCmnRegSetDword(Reg, keyname, bpp);
1214	if (status != NO_ERROR)
1215	dprintf(("VBoxVideo: error %d writing CustomBPP%d\n", status, DeviceExtension->iDevice));
1216	}
1217	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
1218	}
1219	else
1220	{
1221	dprintf(("VBoxVideo: invalid parameters for special mode: (xres = %d, yres = %d, bpp = %d, vramSize = %d)\n",
1222	xres, yres, bpp, vramSize));
1223	if (xres * yres * (bpp / 8) >= vramSize
1224	&& (xres != g_xresNoVRAM \|\| yres != g_yresNoVRAM \|\| bpp != g_bppNoVRAM))
1225	{
1226	LogRel(("VBoxVideo: not enough VRAM for video mode %dx%dx%dbpp. Available: %d bytes. Required: more than %d bytes.\n",
1227	xres, yres, bpp, vramSize, xres * yres * (bpp / 8)));
1228	g_xresNoVRAM = xres;
1229	g_yresNoVRAM = yres;
1230	g_bppNoVRAM = bpp;
1231	}
1232	}
1233	}
1234	else
1235	dprintf(("VBoxVideo: host does not like special mode: (xres = %d, yres = %d, bpp = %d)\n",
1236	xres, yres, bpp));
1237	}
1238	#if defined(LOG_ENABLED)
1239	{
1240	int i;
1241	#ifndef VBOXWDDM
1242	dprintf(("VBoxVideo: VideoModes (CurrentMode = %d, last #%d)\n", DeviceExtension->CurrentMode, gNumVideoModes));
1243	#endif
1244	for (i = 0; i < RT_ELEMENTS(VideoModes); i++)
1245	{
1246	if ( VideoModes[i].VisScreenWidth
1247	\|\| VideoModes[i].VisScreenHeight
1248	\|\| VideoModes[i].BitsPerPlane)
1249	{
1250	dprintf((" %2d: #%d %4d x %4d @ %2d\n",
1251	i, VideoModes[i].ModeIndex, VideoModes[i].VisScreenWidth,
1252	VideoModes[i].VisScreenHeight, VideoModes[i].BitsPerPlane));
1253	}
1254	}
1255	}
1256	#endif
1257
1258	#ifdef VBOXWDDM
1259	vboxWddmBuildResolutionTable();
1260	#endif
1261
1262	VBoxVideoCmnRegFini(Reg);
1263	}
1264
1265	#ifdef VBOXWDDM
1266	static bool g_bModesTableInitialized = false;
1267	/**
1268	* Helper function to dynamically build our table of standard video
1269	* modes. We take the amount of VRAM and create modes with standard
1270	* geometries until we've either reached the maximum number of modes
1271	* or the available VRAM does not allow for additional modes.
1272	*/
1273	VOID VBoxWddmGetModesTable(PDEVICE_EXTENSION DeviceExtension, bool bRebuildTable,
1274	VIDEO_MODE_INFORMATION ** ppModes, uint32_t * pcModes, int32_t * pPreferrableMode,
1275	D3DKMDT_2DREGION *ppResolutions, uint32_t pcResolutions)
1276	{
1277	if(bRebuildTable \|\| !g_bModesTableInitialized)
1278	{
1279	VBoxBuildModesTable(DeviceExtension);
1280	g_bModesTableInitialized = true;
1281	}
1282
1283	*ppModes = VideoModes;
1284	*pcModes = gNumVideoModes;
1285	*pPreferrableMode = (int32_t)gPreferredVideoMode;
1286	*ppResolutions = g_VBoxWddmVideoResolutions;
1287	*pcResolutions = g_VBoxWddmNumResolutions;
1288	}
1289
1290	VOID VBoxWddmInvalidateModesTable(PDEVICE_EXTENSION DeviceExtension)
1291	{
1292	g_bModesTableInitialized = false;
1293	}
1294
1295	NTSTATUS VBoxWddmGetModesForResolution(PDEVICE_EXTENSION DeviceExtension, bool bRebuildTable,
1296	D3DKMDT_2DREGION *pResolution,
1297	VIDEO_MODE_INFORMATION * pModes, uint32_t cModes, uint32_t pcModes, int32_t piPreferrableMode)
1298	{
1299	VIDEO_MODE_INFORMATION *pAllModes;
1300	uint32_t cAllModes, cAllResolutions;
1301	int32_t iPreferrableMode;
1302	D3DKMDT_2DREGION *pAllResolutions;
1303	VBoxWddmGetModesTable(DeviceExtension, bRebuildTable,
1304	&pAllModes, &cAllModes, &iPreferrableMode,
1305	&pAllResolutions, &cAllResolutions);
1306	NTSTATUS Status = STATUS_SUCCESS;
1307	uint32_t cFound = 0;
1308	int iFoundPreferrableMode = -1;
1309	for (uint32_t i = 0; i < cAllModes; ++i)
1310	{
1311	VIDEO_MODE_INFORMATION *pCur = &pAllModes[i];
1312	if (pResolution->cx == pAllModes[i].VisScreenWidth
1313	&& pResolution->cy == pAllModes[i].VisScreenHeight)
1314	{
1315	if (pModes && cModes > cFound)
1316	memcpy(&pModes[cFound], pCur, sizeof (VIDEO_MODE_INFORMATION));
1317	else
1318	Status = STATUS_BUFFER_TOO_SMALL;
1319
1320	if (i == (uint32_t)iPreferrableMode)
1321	iFoundPreferrableMode = cFound;
1322
1323	++cFound;
1324	}
1325	}
1326
1327	Assert(iFoundPreferrableMode < 0 \|\| cFound > (uint32_t)iFoundPreferrableMode);
1328
1329	*pcModes = cFound;
1330	if (piPreferrableMode)
1331	*piPreferrableMode = iFoundPreferrableMode;
1332
1333	return Status;
1334	}
1335
1336	#else
1337
1338	/* Computes the size of a framebuffer. DualView has a few framebuffers of the computed size. */
1339	void VBoxComputeFrameBufferSizes (PDEVICE_EXTENSION PrimaryExtension)
1340	{
1341	#ifndef VBOX_WITH_HGSMI
1342	ULONG ulAvailable = PrimaryExtension->u.primary.cbVRAM
1343	- PrimaryExtension->u.primary.cbMiniportHeap
1344	- VBOX_VIDEO_ADAPTER_INFORMATION_SIZE;
1345	#else
1346	ULONG ulAvailable = PrimaryExtension->u.primary.cbVRAM
1347	- PrimaryExtension->u.primary.cbMiniportHeap
1348	- VBVA_ADAPTER_INFORMATION_SIZE;
1349	#endif /* VBOX_WITH_HGSMI */
1350
1351	/* Size of a framebuffer. */
1352
1353	ULONG ulSize = ulAvailable / PrimaryExtension->u.primary.cDisplays;
1354
1355	/* Align down to 4096 bytes. */
1356	ulSize &= ~0xFFF;
1357
1358	dprintf(("VBoxVideo::VBoxComputeFrameBufferSizes: cbVRAM = 0x%08X, cDisplays = %d, ulSize = 0x%08X, ulSize * cDisplays = 0x%08X, slack = 0x%08X\n",
1359	PrimaryExtension->u.primary.cbVRAM, PrimaryExtension->u.primary.cDisplays,
1360	ulSize, ulSize * PrimaryExtension->u.primary.cDisplays,
1361	ulAvailable - ulSize * PrimaryExtension->u.primary.cDisplays));
1362
1363	#ifndef VBOX_WITH_HGSMI
1364	if (ulSize > VBOX_VIDEO_DISPLAY_INFORMATION_SIZE)
1365	{
1366	/* Compute the size of the framebuffer. */
1367	ulSize -= VBOX_VIDEO_DISPLAY_INFORMATION_SIZE;
1368	}
1369	else
1370	{
1371	/* Should not really get here. But still do it safely. */
1372	ulSize = 0;
1373	}
1374	#endif /* !VBOX_WITH_HGSMI */
1375
1376	/* Update the primary info. */
1377	PrimaryExtension->u.primary.ulMaxFrameBufferSize = ulSize;
1378	#ifndef VBOX_WITH_HGSMI
1379	PrimaryExtension->u.primary.ulDisplayInformationSize = VBOX_VIDEO_DISPLAY_INFORMATION_SIZE;
1380	#endif /* !VBOX_WITH_HGSMI */
1381
1382	/* Update the per extension info. */
1383	PDEVICE_EXTENSION Extension = PrimaryExtension;
1384	ULONG ulFrameBufferOffset = 0;
1385	while (Extension)
1386	{
1387	Extension->ulFrameBufferOffset = ulFrameBufferOffset;
1388	/* That is assigned when a video mode is set. */
1389	Extension->ulFrameBufferSize = 0;
1390
1391	dprintf(("VBoxVideo::VBoxComputeFrameBufferSizes: [%d] ulFrameBufferOffset 0x%08X\n",
1392	Extension->iDevice, ulFrameBufferOffset));
1393
1394	#ifndef VBOX_WITH_HGSMI
1395	ulFrameBufferOffset += PrimaryExtension->u.primary.ulMaxFrameBufferSize
1396	+ PrimaryExtension->u.primary.ulDisplayInformationSize;
1397	#else
1398	ulFrameBufferOffset += PrimaryExtension->u.primary.ulMaxFrameBufferSize;
1399	#endif /* VBOX_WITH_HGSMI */
1400
1401	Extension = Extension->pNext;
1402	}
1403	}
1404
1405	#endif
1406
1407	int VBoxMapAdapterMemory (PDEVICE_EXTENSION PrimaryExtension, void **ppv, ULONG ulOffset, ULONG ulSize)
1408	{
1409	dprintf(("VBoxVideo::VBoxMapAdapterMemory 0x%08X[0x%X]\n", ulOffset, ulSize));
1410
1411	if (!ulSize)
1412	{
1413	dprintf(("Illegal length 0!\n"));
1414	return ERROR_INVALID_PARAMETER;
1415	}
1416
1417	PHYSICAL_ADDRESS FrameBuffer;
1418	FrameBuffer.QuadPart = VBE_DISPI_LFB_PHYSICAL_ADDRESS + ulOffset;
1419
1420	PVOID VideoRamBase = NULL;
1421	ULONG VideoRamLength = ulSize;
1422	VP_STATUS Status;
1423	#ifndef VBOXWDDM
1424	ULONG inIoSpace = 0;
1425
1426	Status = VideoPortMapMemory (PrimaryExtension, FrameBuffer,
1427	&VideoRamLength, &inIoSpace,
1428	&VideoRamBase);
1429	#else
1430	NTSTATUS ntStatus = PrimaryExtension->u.primary.DxgkInterface.DxgkCbMapMemory(PrimaryExtension->u.primary.DxgkInterface.DeviceHandle,
1431	FrameBuffer,
1432	VideoRamLength,
1433	FALSE, /* IN BOOLEAN InIoSpace */
1434	FALSE, /* IN BOOLEAN MapToUserMode */
1435	MmNonCached, /* IN MEMORY_CACHING_TYPE CacheType */
1436	&VideoRamBase /OUT PVOID VirtualAddress*/
1437	);
1438	Assert(ntStatus == STATUS_SUCCESS);
1439	Status = ntStatus == STATUS_SUCCESS ? NO_ERROR : ERROR_INVALID_PARAMETER; /<- this is what VideoPortMapMemory returns according to the docs /
1440	#endif
1441
1442	if (Status == NO_ERROR)
1443	{
1444	*ppv = VideoRamBase;
1445	}
1446
1447	dprintf(("VBoxVideo::VBoxMapAdapterMemory rc = %d\n", Status));
1448
1449	return Status;
1450	}
1451
1452	BOOLEAN VBoxUnmapAdpInfoCallback(PVOID ext)
1453	{
1454	PDEVICE_EXTENSION PrimaryExtension = (PDEVICE_EXTENSION)ext;
1455	Assert(PrimaryExtension);
1456
1457	PrimaryExtension->u.primary.pHostFlags = NULL;
1458	return TRUE;
1459	}
1460
1461	void VBoxUnmapAdapterInformation(PDEVICE_EXTENSION PrimaryExtension)
1462	{
1463	void *ppv;
1464
1465	dprintf(("VBoxVideo::VBoxUnmapAdapterInformation\n"));
1466
1467	ppv = PrimaryExtension->u.primary.pvAdapterInformation;
1468	if (ppv)
1469	{
1470	#ifndef VBOXWDDM
1471	/* The pHostFlags field is mapped through pvAdapterInformation. It must be cleared first,
1472	* and it must be done in a way which avoids races with the interrupt handler.
1473	*/
1474	VideoPortSynchronizeExecution(PrimaryExtension, VpMediumPriority,
1475	VBoxUnmapAdpInfoCallback, PrimaryExtension);
1476	VideoPortUnmapMemory(PrimaryExtension, ppv, NULL);
1477	#else
1478	BOOLEAN bRet;
1479	NTSTATUS ntStatus = PrimaryExtension->u.primary.DxgkInterface.DxgkCbSynchronizeExecution(PrimaryExtension->u.primary.DxgkInterface.DeviceHandle,
1480	VBoxUnmapAdpInfoCallback, PrimaryExtension,
1481	0, &bRet);
1482	Assert(ntStatus == STATUS_SUCCESS);
1483	ntStatus = PrimaryExtension->u.primary.DxgkInterface.DxgkCbUnmapMemory(PrimaryExtension->u.primary.DxgkInterface.DeviceHandle,
1484	ppv);
1485	Assert(ntStatus == STATUS_SUCCESS);
1486	#endif
1487	PrimaryExtension->u.primary.pvAdapterInformation = NULL;
1488	}
1489	}
1490
1491	void VBoxUnmapAdapterMemory (PDEVICE_EXTENSION PrimaryExtension, void **ppv, ULONG ulSize)
1492	{
1493	dprintf(("VBoxVideo::VBoxUnmapAdapterMemory\n"));
1494
1495	if (*ppv)
1496	{
1497	#ifndef VBOXWDDM
1498	VideoPortUnmapMemory(PrimaryExtension, *ppv, NULL);
1499	#else
1500	NTSTATUS ntStatus = PrimaryExtension->u.primary.DxgkInterface.DxgkCbUnmapMemory(PrimaryExtension->u.primary.DxgkInterface.DeviceHandle,
1501	*ppv);
1502	Assert(ntStatus == STATUS_SUCCESS);
1503	#endif
1504	}
1505
1506	*ppv = NULL;
1507	}
1508
1509	#ifndef VBOX_WITH_HGSMI
1510
1511	# ifdef VBOXWDDM
1512	/* sanity check */
1513	# error WDDM is supported only for HGSMI-based driver
1514	# endif
1515
1516	static void vboxQueryConf (PDEVICE_EXTENSION PrimaryExtension, uint32_t u32Index, ULONG *pulValue)
1517	{
1518	dprintf(("VBoxVideo::vboxQueryConf: u32Index = %d\n", u32Index));
1519
1520	typedef struct _VBOXVIDEOQCONF32
1521	{
1522	VBOXVIDEOINFOHDR hdrQuery;
1523	VBOXVIDEOINFOQUERYCONF32 query;
1524	VBOXVIDEOINFOHDR hdrEnd;
1525	} VBOXVIDEOQCONF32;
1526
1527	VBOXVIDEOQCONF32 p = (VBOXVIDEOQCONF32 )PrimaryExtension->u.primary.pvAdapterInformation;
1528
1529	p->hdrQuery.u8Type = VBOX_VIDEO_INFO_TYPE_QUERY_CONF32;
1530	p->hdrQuery.u8Reserved = 0;
1531	p->hdrQuery.u16Length = sizeof (VBOXVIDEOINFOQUERYCONF32);
1532
1533	p->query.u32Index = u32Index;
1534	p->query.u32Value = 0;
1535
1536	p->hdrEnd.u8Type = VBOX_VIDEO_INFO_TYPE_END;
1537	p->hdrEnd.u8Reserved = 0;
1538	p->hdrEnd.u16Length = 0;
1539
1540	/* Let the host to process the commands. */
1541	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_VBOX_VIDEO);
1542	VideoPortWritePortUlong((PULONG)VBE_DISPI_IOPORT_DATA, VBOX_VIDEO_INTERPRET_ADAPTER_MEMORY);
1543
1544	*pulValue = (ULONG)p->query.u32Value;
1545
1546	dprintf(("VBoxVideo::vboxQueryConf: u32Value = %d\n", p->query.u32Value));
1547	}
1548
1549	static void vboxSetupAdapterInfo (PDEVICE_EXTENSION PrimaryExtension)
1550	{
1551	dprintf(("VBoxVideo::vboxSetupAdapterInfo\n"));
1552
1553	VBOXVIDEOINFOHDR *pHdr;
1554
1555	uint8_t pu8 = (uint8_t )PrimaryExtension->u.primary.pvAdapterInformation;
1556
1557	PDEVICE_EXTENSION Extension = PrimaryExtension;
1558	while (Extension)
1559	{
1560	pHdr = (VBOXVIDEOINFOHDR *)pu8;
1561	pu8 += sizeof (VBOXVIDEOINFOHDR);
1562
1563	pHdr->u8Type = VBOX_VIDEO_INFO_TYPE_DISPLAY;
1564	pHdr->u8Reserved = 0;
1565	pHdr->u16Length = sizeof (VBOXVIDEOINFODISPLAY);
1566
1567	VBOXVIDEOINFODISPLAY pDisplay = (VBOXVIDEOINFODISPLAY )pu8;
1568	pu8 += sizeof (VBOXVIDEOINFODISPLAY);
1569
1570	pDisplay->u32Index = Extension->iDevice;
1571	pDisplay->u32Offset = Extension->ulFrameBufferOffset;
1572	pDisplay->u32FramebufferSize = PrimaryExtension->u.primary.ulMaxFrameBufferSize;
1573	pDisplay->u32InformationSize = PrimaryExtension->u.primary.ulDisplayInformationSize;
1574
1575	Extension = Extension->pNext;
1576	}
1577
1578
1579	/* The heap description. */
1580	pHdr = (VBOXVIDEOINFOHDR *)pu8;
1581	pu8 += sizeof (VBOXVIDEOINFOHDR);
1582
1583	pHdr->u8Type = VBOX_VIDEO_INFO_TYPE_NV_HEAP;
1584	pHdr->u8Reserved = 0;
1585	pHdr->u16Length = sizeof (VBOXVIDEOINFONVHEAP);
1586
1587	VBOXVIDEOINFONVHEAP pHeap = (VBOXVIDEOINFONVHEAP )pu8;
1588	pu8 += sizeof (VBOXVIDEOINFONVHEAP);
1589
1590	pHeap->u32HeapOffset = PrimaryExtension->u.primary.cbVRAM
1591	- PrimaryExtension->u.primary.cbMiniportHeap
1592	- VBOX_VIDEO_ADAPTER_INFORMATION_SIZE;
1593	pHeap->u32HeapSize = PrimaryExtension->u.primary.cbMiniportHeap;
1594
1595
1596	/* The END marker. */
1597	pHdr = (VBOXVIDEOINFOHDR *)pu8;
1598	pu8 += sizeof (VBOXVIDEOINFOHDR);
1599
1600	pHdr->u8Type = VBOX_VIDEO_INFO_TYPE_END;
1601	pHdr->u8Reserved = 0;
1602	pHdr->u16Length = 0;
1603
1604	/* Inform the host about the display configuration. */
1605	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_VBOX_VIDEO);
1606	VideoPortWritePortUlong((PULONG)VBE_DISPI_IOPORT_DATA, VBOX_VIDEO_INTERPRET_ADAPTER_MEMORY);
1607
1608	dprintf(("VBoxVideo::vboxSetupAdapterInfo finished\n"));
1609	}
1610
1611	/**
1612	* Helper function to register secondary displays (DualView). Note that this will not
1613	* be available on pre-XP versions, and some editions on XP will fail because they are
1614	* intentionally crippled.
1615	*/
1616	VOID VBoxSetupDisplays(PDEVICE_EXTENSION PrimaryExtension, PVIDEO_PORT_CONFIG_INFO pConfigInfo, ULONG AdapterMemorySize)
1617	{
1618	VP_STATUS rc = NO_ERROR;
1619
1620	dprintf(("VBoxVideo::VBoxSetupDisplays: PrimaryExtension = %p\n",
1621	PrimaryExtension));
1622
1623	/* Preinitialize the primary extension. */
1624	PrimaryExtension->pNext = NULL;
1625	PrimaryExtension->pPrimary = PrimaryExtension;
1626	PrimaryExtension->iDevice = 0;
1627	PrimaryExtension->ulFrameBufferOffset = 0;
1628	PrimaryExtension->ulFrameBufferSize = 0;
1629	PrimaryExtension->u.primary.ulVbvaEnabled = 0;
1630	PrimaryExtension->u.primary.bVBoxVideoSupported = FALSE;
1631	PrimaryExtension->u.primary.cDisplays = 1;
1632	PrimaryExtension->u.primary.cbVRAM = AdapterMemorySize;
1633	PrimaryExtension->u.primary.cbMiniportHeap = 0;
1634	PrimaryExtension->u.primary.pvMiniportHeap = NULL;
1635	PrimaryExtension->u.primary.pvAdapterInformation = NULL;
1636	PrimaryExtension->u.primary.ulMaxFrameBufferSize = 0;
1637	PrimaryExtension->u.primary.ulDisplayInformationSize = 0;
1638
1639	/* Verify whether the HW supports VirtualBox extensions. */
1640	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ID);
1641	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, VBE_DISPI_ID_VBOX_VIDEO);
1642
1643	if (VideoPortReadPortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA) == VBE_DISPI_ID_VBOX_VIDEO)
1644	{
1645	PrimaryExtension->u.primary.bVBoxVideoSupported = TRUE;
1646	}
1647
1648	dprintf(("VBoxVideo::VBoxSetupDisplays: bVBoxVideoSupported = %d\n",
1649	PrimaryExtension->u.primary.bVBoxVideoSupported));
1650
1651	if (PrimaryExtension->u.primary.bVBoxVideoSupported)
1652	{
1653	/* Map the adapter information. It will be needed to query some configuration values. */
1654	rc = VBoxMapAdapterMemory (PrimaryExtension,
1655	&PrimaryExtension->u.primary.pvAdapterInformation,
1656	PrimaryExtension->u.primary.cbVRAM - VBOX_VIDEO_ADAPTER_INFORMATION_SIZE,
1657	VBOX_VIDEO_ADAPTER_INFORMATION_SIZE
1658	);
1659	if (rc != NO_ERROR)
1660	{
1661	dprintf(("VBoxVideo::VBoxSetupDisplays: VBoxMapAdapterMemory pvAdapterInfoirrmation failed rc = %d\n",
1662	rc));
1663
1664	PrimaryExtension->u.primary.bVBoxVideoSupported = FALSE;
1665	}
1666	}
1667
1668	/* Setup the non-volatile heap and the adapter memory. */
1669	if (PrimaryExtension->u.primary.bVBoxVideoSupported)
1670	{
1671	/* Query the size of the non-volatile heap. */
1672	ULONG cbMiniportHeap = 0;
1673	vboxQueryConf (PrimaryExtension, VBOX_VIDEO_QCI32_OFFSCREEN_HEAP_SIZE, &cbMiniportHeap);
1674
1675	/* Do not allow too big heap. 50% of VRAM should be enough. */
1676	ULONG cbMiniportHeapMaxSize = AdapterMemorySize / 2 - VBOX_VIDEO_ADAPTER_INFORMATION_SIZE;
1677
1678	if (cbMiniportHeap > cbMiniportHeapMaxSize)
1679	{
1680	cbMiniportHeap = cbMiniportHeapMaxSize;
1681	}
1682
1683	/* Round up to 4096. */
1684	PrimaryExtension->u.primary.cbMiniportHeap = (cbMiniportHeap + 0xFFF) & ~0xFFF;
1685
1686	dprintf(("VBoxVideo::VBoxSetupDisplays: cbMiniportHeap = 0x%08X, PrimaryExtension->u.primary.cbMiniportHeap = 0x%08X, cbMiniportHeapMaxSize = 0x%08X\n",
1687	cbMiniportHeap, PrimaryExtension->u.primary.cbMiniportHeap, cbMiniportHeapMaxSize));
1688
1689	/* Map the heap region and the adapter information area.
1690	*
1691	* Note: the heap will be used by display drivers, possibly by a few instances
1692	* in multimonitor configuration, but the memory is mapped here ones.
1693	* It is assumed that all display drivers and the miniport has the SAME
1694	* virtual address space.
1695	*
1696	*/
1697	rc = VBoxMapAdapterMemory (PrimaryExtension,
1698	&PrimaryExtension->u.primary.pvMiniportHeap,
1699	PrimaryExtension->u.primary.cbVRAM
1700	- VBOX_VIDEO_ADAPTER_INFORMATION_SIZE
1701	- PrimaryExtension->u.primary.cbMiniportHeap,
1702	PrimaryExtension->u.primary.cbMiniportHeap
1703	);
1704
1705	if (rc != NO_ERROR)
1706	{
1707	PrimaryExtension->u.primary.cbMiniportHeap = 0;
1708	PrimaryExtension->u.primary.bVBoxVideoSupported = FALSE;
1709	}
1710	}
1711
1712	/* Check whether the guest supports multimonitors. */
1713	if (PrimaryExtension->u.primary.bVBoxVideoSupported)
1714	{
1715	typedef VP_STATUS (PFNCREATESECONDARYDISPLAY)(PVOID, PVOID , ULONG);
1716	PFNCREATESECONDARYDISPLAY pfnCreateSecondaryDisplay = NULL;
1717
1718	/* Dynamically query the VideoPort import to be binary compatible across Windows versions */
1719	if (vboxQueryWinVersion() > WINNT4)
1720	{
1721	/* This bluescreens on NT4, hence the above version check */
1722	pfnCreateSecondaryDisplay = (PFNCREATESECONDARYDISPLAY)(pConfigInfo->VideoPortGetProcAddress)
1723	(PrimaryExtension,
1724	(PUCHAR)"VideoPortCreateSecondaryDisplay");
1725	}
1726
1727	if (pfnCreateSecondaryDisplay != NULL)
1728	{
1729	/* Query the configured number of displays. */
1730	ULONG cDisplays = 0;
1731	vboxQueryConf (PrimaryExtension, VBOX_VIDEO_QCI32_MONITOR_COUNT, &cDisplays);
1732
1733	dprintf(("VBoxVideo::VBoxSetupDisplays: cDisplays = %d\n",
1734	cDisplays));
1735
1736	if (cDisplays == 0 \|\| cDisplays > VBOX_VIDEO_MAX_SCREENS)
1737	{
1738	/* Host reported some bad value. Continue in the 1 screen mode. */
1739	cDisplays = 1;
1740	}
1741
1742	PDEVICE_EXTENSION pPrev = PrimaryExtension;
1743
1744	ULONG iDisplay;
1745	for (iDisplay = 1; iDisplay < cDisplays; iDisplay++)
1746	{
1747	PDEVICE_EXTENSION SecondaryExtension = NULL;
1748	rc = pfnCreateSecondaryDisplay (PrimaryExtension, (PVOID*)&SecondaryExtension, VIDEO_DUALVIEW_REMOVABLE);
1749
1750	dprintf(("VBoxVideo::VBoxSetupDisplays: VideoPortCreateSecondaryDisplay returned %#x, SecondaryExtension = %p\n",
1751	rc, SecondaryExtension));
1752
1753	if (rc != NO_ERROR)
1754	{
1755	break;
1756	}
1757
1758	SecondaryExtension->pNext = NULL;
1759	SecondaryExtension->pPrimary = PrimaryExtension;
1760	SecondaryExtension->iDevice = iDisplay;
1761	SecondaryExtension->ulFrameBufferOffset = 0;
1762	SecondaryExtension->ulFrameBufferSize = 0;
1763	SecondaryExtension->u.secondary.bEnabled = FALSE;
1764
1765	/* Update the list pointers. */
1766	pPrev->pNext = SecondaryExtension;
1767	pPrev = SecondaryExtension;
1768
1769	/* Take the successfully created display into account. */
1770	PrimaryExtension->u.primary.cDisplays++;
1771	}
1772
1773	/* Failure to create secondary displays is not fatal */
1774	rc = NO_ERROR;
1775	}
1776	}
1777
1778	/* Now when the number of monitors is known and extensions are created,
1779	* calculate the layout of framebuffers.
1780	*/
1781	VBoxComputeFrameBufferSizes (PrimaryExtension);
1782
1783	if (PrimaryExtension->u.primary.bVBoxVideoSupported)
1784	{
1785	/* Setup the information for the host. */
1786	vboxSetupAdapterInfo (PrimaryExtension);
1787	}
1788	else
1789	{
1790	/* Unmap the memory if VBoxVideo is not supported. */
1791	VBoxUnmapAdapterMemory (PrimaryExtension, &PrimaryExtension->u.primary.pvMiniportHeap, PrimaryExtension->u.primary.cbMiniportHeap);
1792	VBoxUnmapAdapterInformation (PrimaryExtension);
1793	}
1794
1795	dprintf(("VBoxVideo::VBoxSetupDisplays: finished\n"));
1796	}
1797	#endif /* !VBOX_WITH_HGSMI */
1798
1799	#ifndef VBOXWDDM
1800
1801	VP_STATUS VBoxVideoFindAdapter(IN PVOID HwDeviceExtension,
1802	IN PVOID HwContext, IN PWSTR ArgumentString,
1803	IN OUT PVIDEO_PORT_CONFIG_INFO ConfigInfo,
1804	OUT PUCHAR Again)
1805	{
1806	VP_STATUS rc;
1807	USHORT DispiId;
1808	ULONG AdapterMemorySize = VBE_DISPI_TOTAL_VIDEO_MEMORY_BYTES;
1809
1810	dprintf(("VBoxVideo::VBoxVideoFindAdapter %p\n", HwDeviceExtension));
1811
1812	#ifdef VBOX_WITH_HGSMI
1813	VBoxSetupVideoPortFunctions((PDEVICE_EXTENSION)HwDeviceExtension, &((PDEVICE_EXTENSION)HwDeviceExtension)->u.primary.VideoPortProcs, ConfigInfo);
1814	#endif
1815
1816	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ID);
1817	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, VBE_DISPI_ID2);
1818	DispiId = VideoPortReadPortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA);
1819	if (DispiId == VBE_DISPI_ID2)
1820	{
1821	dprintf(("VBoxVideo::VBoxVideoFoundAdapter: found the VBE card\n"));
1822	/*
1823	* Write some hardware information to registry, so that
1824	* it's visible in Windows property dialog.
1825	*/
1826
1827	rc = VideoPortSetRegistryParameters(
1828	HwDeviceExtension,
1829	L"HardwareInformation.ChipType",
1830	VBoxChipType,
1831	sizeof(VBoxChipType));
1832
1833	rc = VideoPortSetRegistryParameters(
1834	HwDeviceExtension,
1835	L"HardwareInformation.DacType",
1836	VBoxDACType,
1837	sizeof(VBoxDACType));
1838
1839	/*
1840	* Query the adapter's memory size. It's a bit of a hack, we just read
1841	* an ULONG from the data port without setting an index before.
1842	*/
1843	AdapterMemorySize = VideoPortReadPortUlong((PULONG)VBE_DISPI_IOPORT_DATA);
1844	rc = VideoPortSetRegistryParameters(
1845	HwDeviceExtension,
1846	L"HardwareInformation.MemorySize",
1847	&AdapterMemorySize,
1848	sizeof(ULONG));
1849
1850	rc = VideoPortSetRegistryParameters(
1851	HwDeviceExtension,
1852	L"HardwareInformation.AdapterString",
1853	VBoxAdapterString,
1854	sizeof(VBoxAdapterString));
1855
1856	rc = VideoPortSetRegistryParameters(
1857	HwDeviceExtension,
1858	L"HardwareInformation.BiosString",
1859	VBoxBiosString,
1860	sizeof(VBoxBiosString));
1861
1862	dprintf(("VBoxVideo::VBoxVideoFindAdapter: calling VideoPortGetAccessRanges\n"));
1863
1864	#ifdef VBOX_WITH_HGSMI
1865	((PDEVICE_EXTENSION)HwDeviceExtension)->u.primary.IOPortHost = (RTIOPORT)VGA_PORT_HGSMI_HOST;
1866	((PDEVICE_EXTENSION)HwDeviceExtension)->u.primary.IOPortGuest = (RTIOPORT)VGA_PORT_HGSMI_GUEST;
1867	#endif /* VBOX_WITH_HGSMI */
1868
1869	VIDEO_ACCESS_RANGE tmpRanges[4];
1870	ULONG slot = 0;
1871
1872	VideoPortZeroMemory(tmpRanges, sizeof(tmpRanges));
1873
1874	/* need to call VideoPortGetAccessRanges to ensure interrupt info in ConfigInfo gets set up */
1875	VP_STATUS status;
1876	if (vboxQueryWinVersion() == WINNT4)
1877	{
1878	/* NT crashes if either of 'vendorId, 'deviceId' or 'slot' parameters is NULL,
1879	* and needs PCI ids for a successful VideoPortGetAccessRanges call.
1880	*/
1881	ULONG vendorId = 0x80EE;
1882	ULONG deviceId = 0xBEEF;
1883	status = VideoPortGetAccessRanges(HwDeviceExtension,
1884	0,
1885	NULL,
1886	sizeof (tmpRanges)/sizeof (tmpRanges[0]),
1887	tmpRanges,
1888	&vendorId,
1889	&deviceId,
1890	&slot);
1891	}
1892	else
1893	{
1894	status = VideoPortGetAccessRanges(HwDeviceExtension,
1895	0,
1896	NULL,
1897	sizeof (tmpRanges)/sizeof (tmpRanges[0]),
1898	tmpRanges,
1899	NULL,
1900	NULL,
1901	&slot);
1902	}
1903	dprintf(("VBoxVideo::VBoxVideoFindAdapter: VideoPortGetAccessRanges status 0x%x\n", status));
1904
1905	/* Initialize VBoxGuest library, which is used for requests which go through VMMDev. */
1906	rc = VbglInit ();
1907	dprintf(("VBoxVideo::VBoxVideoFindAdapter: VbglInit returned 0x%x\n", rc));
1908
1909	#ifndef VBOX_WITH_HGSMI
1910	/* Setup the Device Extension and if possible secondary displays. */
1911	VBoxSetupDisplays((PDEVICE_EXTENSION)HwDeviceExtension, ConfigInfo, AdapterMemorySize);
1912	#else
1913	/* Guest supports only HGSMI, the old VBVA via VMMDev is not supported. Old
1914	* code will be ifdef'ed and later removed.
1915	* The host will however support both old and new interface to keep compatibility
1916	* with old guest additions.
1917	*/
1918	VBoxSetupDisplaysHGSMI((PDEVICE_EXTENSION)HwDeviceExtension, ConfigInfo, AdapterMemorySize);
1919
1920	if (((PDEVICE_EXTENSION)HwDeviceExtension)->u.primary.bHGSMI)
1921	{
1922	LogRel(("VBoxVideo: using HGSMI\n"));
1923	}
1924	#endif /* VBOX_WITH_HGSMI */
1925
1926	// pretend success to make the driver work.
1927	rc = NO_ERROR;
1928	} else
1929	{
1930	dprintf(("VBoxVideo::VBoxVideoFindAdapter: VBE card not found, returning ERROR_DEV_NOT_EXIST\n"));
1931	rc = ERROR_DEV_NOT_EXIST;
1932	}
1933	dprintf(("VBoxVideo::VBoxVideoFindAdapter: returning with rc = 0x%x\n", rc));
1934	return rc;
1935	}
1936
1937	/**
1938	* VBoxVideoInitialize
1939	*
1940	* Performs the first initialization of the adapter, after the HAL has given
1941	* up control of the video hardware to the video port driver.
1942	*/
1943	BOOLEAN VBoxVideoInitialize(PVOID HwDeviceExtension)
1944	{
1945	VP_STATUS status;
1946
1947	dprintf(("VBoxVideo::VBoxVideoInitialize\n"));
1948
1949	PDEVICE_EXTENSION pDevExt = (PDEVICE_EXTENSION)HwDeviceExtension;
1950
1951	/* Initialize the request pointer. */
1952	pDevExt->u.primary.pvReqFlush = NULL;
1953
1954	#ifndef VBOX_WITH_MULTIMONITOR_FIX
1955	/*
1956	* Get the last custom resolution
1957	*/
1958	status = VideoPortGetRegistryParameters(HwDeviceExtension,
1959	L"CustomXRes",
1960	FALSE,
1961	VBoxRegistryCallback,
1962	&gCustomXRes);
1963	if (status != NO_ERROR)
1964	gCustomXRes = 0;
1965	status = VideoPortGetRegistryParameters(HwDeviceExtension,
1966	L"CustomYRes",
1967	FALSE,
1968	VBoxRegistryCallback,
1969	&gCustomYRes);
1970	if (status != NO_ERROR)
1971	gCustomYRes = 0;
1972	status = VideoPortGetRegistryParameters(HwDeviceExtension,
1973	L"CustomBPP",
1974	FALSE,
1975	VBoxRegistryCallback,
1976	&gCustomBPP);
1977	if (status != NO_ERROR)
1978	gCustomBPP = 0;
1979
1980	dprintf(("VBoxVideo: got stored custom resolution %dx%dx%d\n", gCustomXRes, gCustomYRes, gCustomBPP));
1981	#else
1982	/* Initialize all custom modes to the 800x600x32. */
1983	initVideoModeInformation(&CustomVideoModes[0], 800, 600, 32, 0, 0);
1984
1985	int iCustomMode;
1986	for (iCustomMode = 1; iCustomMode < RT_ELEMENTS(CustomVideoModes); iCustomMode++)
1987	{
1988	CustomVideoModes[iCustomMode] = CustomVideoModes[0];
1989	}
1990
1991	/* Load stored custom resolution from the registry. */
1992	PDEVICE_EXTENSION DeviceExtension = (PDEVICE_EXTENSION)HwDeviceExtension;
1993	for (iCustomMode = 0; iCustomMode < DeviceExtension->pPrimary->u.primary.cDisplays; iCustomMode++)
1994	{
1995	/*
1996	* Get the last custom resolution
1997	*/
1998	ULONG CustomXRes = 0, CustomYRes = 0, CustomBPP = 0;
1999
2000	if (iCustomMode == 0)
2001	{
2002	/* Name without a suffix */
2003	status = VideoPortGetRegistryParameters(HwDeviceExtension,
2004	L"CustomXRes",
2005	FALSE,
2006	VBoxRegistryCallback,
2007	&CustomXRes);
2008	if (status != NO_ERROR)
2009	CustomXRes = 0;
2010	status = VideoPortGetRegistryParameters(HwDeviceExtension,
2011	L"CustomYRes",
2012	FALSE,
2013	VBoxRegistryCallback,
2014	&CustomYRes);
2015	if (status != NO_ERROR)
2016	CustomYRes = 0;
2017	status = VideoPortGetRegistryParameters(HwDeviceExtension,
2018	L"CustomBPP",
2019	FALSE,
2020	VBoxRegistryCallback,
2021	&CustomBPP);
2022	if (status != NO_ERROR)
2023	CustomBPP = 0;
2024	}
2025	else
2026	{
2027	wchar_t keyname[32];
2028	swprintf(keyname, L"CustomXRes%d", iCustomMode);
2029	status = VideoPortGetRegistryParameters(HwDeviceExtension,
2030	keyname,
2031	FALSE,
2032	VBoxRegistryCallback,
2033	&CustomXRes);
2034	if (status != NO_ERROR)
2035	CustomXRes = 0;
2036	swprintf(keyname, L"CustomYRes%d", iCustomMode);
2037	status = VideoPortGetRegistryParameters(HwDeviceExtension,
2038	keyname,
2039	FALSE,
2040	VBoxRegistryCallback,
2041	&CustomYRes);
2042	if (status != NO_ERROR)
2043	CustomYRes = 0;
2044	swprintf(keyname, L"CustomBPP%d", iCustomMode);
2045	status = VideoPortGetRegistryParameters(HwDeviceExtension,
2046	keyname,
2047	FALSE,
2048	VBoxRegistryCallback,
2049	&CustomBPP);
2050	if (status != NO_ERROR)
2051	CustomBPP = 0;
2052	}
2053
2054	dprintf(("VBoxVideo: got stored custom resolution[%d] %dx%dx%d\n", iCustomMode, CustomXRes, CustomYRes, CustomBPP));
2055
2056	if (CustomXRes \|\| CustomYRes \|\| CustomBPP)
2057	{
2058	if (CustomXRes == 0)
2059	{
2060	CustomXRes = CustomVideoModes[iCustomMode].VisScreenWidth;
2061	}
2062	if (CustomYRes == 0)
2063	{
2064	CustomYRes = CustomVideoModes[iCustomMode].VisScreenHeight;
2065	}
2066	if (CustomBPP == 0)
2067	{
2068	CustomBPP = CustomVideoModes[iCustomMode].BitsPerPlane;
2069	}
2070
2071	initVideoModeInformation(&CustomVideoModes[iCustomMode], CustomXRes, CustomYRes, CustomBPP, 0, 0);
2072	}
2073	}
2074	#endif /* VBOX_WITH_MULTIMONITOR_FIX */
2075
2076	return TRUE;
2077	}
2078
2079	# if defined(VBOX_WITH_HGSMI) && defined(VBOX_WITH_VIDEOHWACCEL)
2080
2081	BOOLEAN VBoxVideoInterrupt(PVOID HwDeviceExtension)
2082	{
2083	PDEVICE_EXTENSION devExt = (PDEVICE_EXTENSION)HwDeviceExtension;
2084	PDEVICE_EXTENSION PrimaryExtension = devExt->pPrimary;
2085	if (PrimaryExtension)
2086	{
2087	if (PrimaryExtension->u.primary.pHostFlags) /* If HGSMI is enabled at all. */
2088	{
2089	uint32_t flags = PrimaryExtension->u.primary.pHostFlags->u32HostFlags;
2090	if((flags & HGSMIHOSTFLAGS_IRQ) != 0)
2091	{
2092	if((flags & HGSMIHOSTFLAGS_COMMANDS_PENDING) != 0)
2093	{
2094	/* schedule a DPC*/
2095	BOOLEAN bResult = PrimaryExtension->u.primary.VideoPortProcs.pfnQueueDpc(PrimaryExtension, VBoxVideoHGSMIDpc, (PVOID)1);
2096	Assert(bResult);
2097	}
2098	/* clear the IRQ */
2099	HGSMIClearIrq (PrimaryExtension);
2100	return TRUE;
2101	}
2102	}
2103	}
2104	return FALSE;
2105	}
2106	# endif /* #if defined(VBOX_WITH_HGSMI) && defined(VBOX_WITH_VIDEOHWACCEL) */
2107	#endif /* #ifndef VBOXWDDM */
2108	/**
2109	* Send a request to the host to make the absolute pointer visible
2110	*/
2111	static BOOLEAN ShowPointer(PVOID HwDeviceExtension)
2112	{
2113	BOOLEAN Result = TRUE;
2114
2115	/* Use primary device extension, because the show pointer request should be processed
2116	* in vboxUpdatePointerShape regardless of the device. */
2117	#ifndef VBOXWDDM
2118	PDEVICE_EXTENSION PrimaryExtension = ((PDEVICE_EXTENSION)HwDeviceExtension)->pPrimary;
2119	#else
2120	PDEVICE_EXTENSION PrimaryExtension = (PDEVICE_EXTENSION)HwDeviceExtension;
2121	#endif
2122
2123	if (DEV_MOUSE_HIDDEN(PrimaryExtension))
2124	{
2125	// tell the host to use the guest's pointer
2126	VIDEO_POINTER_ATTRIBUTES PointerAttributes;
2127
2128	/* Visible and No Shape means Show the pointer.
2129	* It is enough to init only this field.
2130	*/
2131	PointerAttributes.Enable = VBOX_MOUSE_POINTER_VISIBLE;
2132
2133	#ifndef VBOX_WITH_HGSMI
2134	Result = vboxUpdatePointerShape(&PointerAttributes, sizeof (PointerAttributes));
2135	#else
2136	Result = vboxUpdatePointerShape(PrimaryExtension, &PointerAttributes, sizeof (PointerAttributes));
2137	#endif /* VBOX_WITH_HGSMI */
2138
2139	if (Result)
2140	DEV_SET_MOUSE_SHOWN(PrimaryExtension);
2141	else
2142	dprintf(("VBoxVideo::ShowPointer: Could not show the hardware pointer -> fallback\n"));
2143	}
2144	return Result;
2145	}
2146
2147	#ifndef VBOXWDDM
2148	/**
2149	* VBoxVideoStartIO
2150	*
2151	* Processes the specified Video Request Packet.
2152	*/
2153	BOOLEAN VBoxVideoStartIO(PVOID HwDeviceExtension,
2154	PVIDEO_REQUEST_PACKET RequestPacket)
2155	{
2156	PDEVICE_EXTENSION pDevExt = (PDEVICE_EXTENSION)HwDeviceExtension;
2157
2158	BOOLEAN Result;
2159
2160	// dprintf(("VBoxVideo::VBoxVideoStartIO: Code %08X\n", RequestPacket->IoControlCode));
2161
2162	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2163
2164	switch (RequestPacket->IoControlCode)
2165	{
2166	case IOCTL_VIDEO_SET_CURRENT_MODE:
2167	{
2168	if (RequestPacket->InputBufferLength < sizeof(VIDEO_MODE))
2169	{
2170	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2171	return TRUE;
2172	}
2173	Result = VBoxVideoSetCurrentMode((PDEVICE_EXTENSION)HwDeviceExtension,
2174	(PVIDEO_MODE)RequestPacket->InputBuffer,
2175	RequestPacket->StatusBlock);
2176	break;
2177	}
2178
2179	case IOCTL_VIDEO_RESET_DEVICE:
2180	{
2181	Result = VBoxVideoResetDevice((PDEVICE_EXTENSION)HwDeviceExtension,
2182	RequestPacket->StatusBlock);
2183	break;
2184	}
2185
2186	case IOCTL_VIDEO_MAP_VIDEO_MEMORY:
2187	{
2188	if (RequestPacket->OutputBufferLength < sizeof(VIDEO_MEMORY_INFORMATION) \|\|
2189	RequestPacket->InputBufferLength < sizeof(VIDEO_MEMORY))
2190	{
2191	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2192	return TRUE;
2193	}
2194	Result = VBoxVideoMapVideoMemory((PDEVICE_EXTENSION)HwDeviceExtension,
2195	(PVIDEO_MEMORY)RequestPacket->InputBuffer,
2196	(PVIDEO_MEMORY_INFORMATION)RequestPacket->OutputBuffer,
2197	RequestPacket->StatusBlock);
2198	break;
2199	}
2200
2201	case IOCTL_VIDEO_UNMAP_VIDEO_MEMORY:
2202	{
2203	if (RequestPacket->InputBufferLength < sizeof(VIDEO_MEMORY))
2204	{
2205	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2206	return TRUE;
2207	}
2208	Result = VBoxVideoUnmapVideoMemory((PDEVICE_EXTENSION)HwDeviceExtension,
2209	(PVIDEO_MEMORY)RequestPacket->InputBuffer,
2210	RequestPacket->StatusBlock);
2211	break;
2212	}
2213
2214	case IOCTL_VIDEO_SHARE_VIDEO_MEMORY:
2215	{
2216	PVIDEO_SHARE_MEMORY pShareMemory;
2217	PVIDEO_SHARE_MEMORY_INFORMATION pShareMemoryInformation;
2218	PHYSICAL_ADDRESS shareAddress;
2219	PVOID virtualAddress = NULL;
2220	ULONG sharedViewSize;
2221	ULONG inIoSpace = 0;
2222	VP_STATUS status;
2223
2224	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_SHARE_VIDEO_MEMORY\n"));
2225
2226	if ( (RequestPacket->OutputBufferLength < sizeof(VIDEO_SHARE_MEMORY_INFORMATION))
2227	\|\| (RequestPacket->InputBufferLength < sizeof(VIDEO_MEMORY)) ) {
2228
2229	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_SHARE_VIDEO_MEMORY: ERROR_INSUFFICIENT_BUFFER\n"));
2230	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2231	Result = FALSE;
2232	break;
2233	}
2234
2235	pShareMemory = (PVIDEO_SHARE_MEMORY)RequestPacket->InputBuffer;
2236
2237	if ( (pShareMemory->ViewOffset > pDevExt->pPrimary->u.primary.ulMaxFrameBufferSize)
2238	\|\| ((pShareMemory->ViewOffset + pShareMemory->ViewSize) > pDevExt->pPrimary->u.primary.ulMaxFrameBufferSize) ) {
2239
2240	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_SHARE_VIDEO_MEMORY - ERROR_INVALID_PARAMETER %x:%x size %x\n", pShareMemory->ViewOffset, pShareMemory->ViewSize, pDevExt->pPrimary->u.primary.ulMaxFrameBufferSize));
2241	RequestPacket->StatusBlock->Status = ERROR_INVALID_PARAMETER;
2242	Result = FALSE;
2243	break;
2244	}
2245
2246	RequestPacket->StatusBlock->Information = sizeof(VIDEO_SHARE_MEMORY_INFORMATION);
2247
2248	virtualAddress = pShareMemory->ProcessHandle;
2249	sharedViewSize = pShareMemory->ViewSize;
2250
2251	shareAddress.QuadPart = VBE_DISPI_LFB_PHYSICAL_ADDRESS + pDevExt->ulFrameBufferOffset;
2252
2253	status = VideoPortMapMemory(HwDeviceExtension, shareAddress, &sharedViewSize, &inIoSpace, &virtualAddress);
2254	if (status != NO_ERROR)
2255	dprintf(("VBoxVideo::VBoxVideoStartIO: VideoPortMapMemory failed with %x\n", status));
2256	Result = (status == NO_ERROR);
2257
2258	pShareMemoryInformation = (PVIDEO_SHARE_MEMORY_INFORMATION)RequestPacket->OutputBuffer;
2259	pShareMemoryInformation->SharedViewOffset = pShareMemory->ViewOffset;
2260	pShareMemoryInformation->VirtualAddress = virtualAddress;
2261	pShareMemoryInformation->SharedViewSize = sharedViewSize;
2262	break;
2263	}
2264
2265	case IOCTL_VIDEO_UNSHARE_VIDEO_MEMORY:
2266	{
2267	PVIDEO_SHARE_MEMORY pShareMemory;
2268	VP_STATUS status;
2269
2270	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_UNSHARE_VIDEO_MEMORY\n"));
2271
2272	if (RequestPacket->InputBufferLength < sizeof(VIDEO_SHARE_MEMORY))
2273	{
2274	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_UNSHARE_VIDEO_MEMORY: ERROR_INSUFFICIENT_BUFFER\n"));
2275	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2276	Result = FALSE;
2277	break;
2278	}
2279
2280	pShareMemory = (PVIDEO_SHARE_MEMORY)RequestPacket->InputBuffer;
2281
2282	status = VideoPortUnmapMemory(HwDeviceExtension, pShareMemory->RequestedVirtualAddress, pShareMemory->ProcessHandle);
2283	if (status != NO_ERROR)
2284	dprintf(("VBoxVideo::VBoxVideoStartIO: VideoPortUnmapMemory failed with %x\n", status));
2285	Result = (status == NO_ERROR);
2286	break;
2287	}
2288
2289	/*
2290	* The display driver asks us how many video modes we support
2291	* so that it can supply an appropriate buffer for the next call.
2292	*/
2293	case IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES:
2294	{
2295	if (RequestPacket->OutputBufferLength < sizeof(VIDEO_NUM_MODES))
2296	{
2297	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2298	return TRUE;
2299	}
2300	Result = VBoxVideoQueryNumAvailModes((PDEVICE_EXTENSION)HwDeviceExtension,
2301	(PVIDEO_NUM_MODES)RequestPacket->OutputBuffer,
2302	RequestPacket->StatusBlock);
2303	break;
2304	}
2305
2306	/*
2307	* The display driver asks us to provide a list of supported video modes
2308	* into a buffer it has allocated.
2309	*/
2310	case IOCTL_VIDEO_QUERY_AVAIL_MODES:
2311	{
2312	if (RequestPacket->OutputBufferLength <
2313	gNumVideoModes * sizeof(VIDEO_MODE_INFORMATION))
2314	{
2315	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2316	return TRUE;
2317	}
2318	Result = VBoxVideoQueryAvailModes((PDEVICE_EXTENSION)HwDeviceExtension,
2319	(PVIDEO_MODE_INFORMATION)RequestPacket->OutputBuffer,
2320	RequestPacket->StatusBlock);
2321	break;
2322	}
2323
2324	case IOCTL_VIDEO_SET_COLOR_REGISTERS:
2325	{
2326	if (RequestPacket->InputBufferLength < sizeof(VIDEO_CLUT) \|\|
2327	RequestPacket->InputBufferLength <
2328	(((PVIDEO_CLUT)RequestPacket->InputBuffer)->NumEntries * sizeof(ULONG)) +
2329	sizeof(VIDEO_CLUT))
2330	{
2331	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2332	return TRUE;
2333	}
2334	Result = VBoxVideoSetColorRegisters((PDEVICE_EXTENSION)HwDeviceExtension,
2335	(PVIDEO_CLUT)RequestPacket->InputBuffer,
2336	RequestPacket->StatusBlock);
2337	break;
2338	}
2339
2340	case IOCTL_VIDEO_QUERY_CURRENT_MODE:
2341	{
2342	if (RequestPacket->OutputBufferLength < sizeof(VIDEO_MODE_INFORMATION))
2343	{
2344	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2345	return TRUE;
2346	}
2347	Result = VBoxVideoQueryCurrentMode((PDEVICE_EXTENSION)HwDeviceExtension,
2348	(PVIDEO_MODE_INFORMATION)RequestPacket->OutputBuffer,
2349	RequestPacket->StatusBlock);
2350	break;
2351	}
2352
2353	// show the pointer
2354	case IOCTL_VIDEO_ENABLE_POINTER:
2355	{
2356	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_ENABLE_POINTER\n"));
2357	// find out whether the host wants absolute positioning
2358	/// @todo this is now obsolete - remove it?
2359	if (vboxQueryHostWantsAbsolute())
2360	Result = ShowPointer(HwDeviceExtension);
2361	else
2362	{
2363	// fallback to software pointer
2364	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2365	Result = FALSE;
2366	}
2367	break;
2368	}
2369
2370	// hide the pointer
2371	case IOCTL_VIDEO_DISABLE_POINTER:
2372	{
2373	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_DISABLE_POINTER\n"));
2374	// find out whether the host wants absolute positioning
2375	if (vboxQueryHostWantsAbsolute())
2376	{
2377	// tell the host to hide pointer
2378	VIDEO_POINTER_ATTRIBUTES PointerAttributes;
2379
2380	/* Enable == 0 means no shape, not visible.
2381	* It is enough to init only this field.
2382	*/
2383	PointerAttributes.Enable = 0;
2384
2385	#ifndef VBOX_WITH_HGSMI
2386	Result = vboxUpdatePointerShape(&PointerAttributes, sizeof (PointerAttributes));
2387	#else
2388	Result = vboxUpdatePointerShape((PDEVICE_EXTENSION)HwDeviceExtension, &PointerAttributes, sizeof (PointerAttributes));
2389	#endif /* VBOX_WITH_HGSMI */
2390
2391	if (Result)
2392	DEV_SET_MOUSE_HIDDEN((PDEVICE_EXTENSION)HwDeviceExtension);
2393	else
2394	dprintf(("VBoxVideo::VBoxVideoStartIO: Could not hide hardware pointer -> fallback\n"));
2395	} else
2396	{
2397	// fallback to software pointer
2398	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2399	Result = FALSE;
2400	}
2401	break;
2402	}
2403
2404	/*
2405	* Change the pointer shape
2406	*/
2407	case IOCTL_VIDEO_SET_POINTER_ATTR:
2408	{
2409	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_SET_POINTER_ATTR\n"));
2410	if (RequestPacket->InputBufferLength < sizeof(VIDEO_POINTER_ATTRIBUTES))
2411	{
2412	dprintf(("VBoxVideo::VBoxVideoStartIO: Input buffer too small (%d bytes)\n", RequestPacket->InputBufferLength));
2413	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2414	return TRUE;
2415	}
2416	// find out whether the host wants absolute positioning
2417	if (vboxQueryHostWantsAbsolute())
2418	{
2419	PVIDEO_POINTER_ATTRIBUTES pPointerAttributes = (PVIDEO_POINTER_ATTRIBUTES)RequestPacket->InputBuffer;
2420	#if 0
2421	dprintf(("Pointer shape information:\n"
2422	"\tFlags: %d\n"
2423	"\tWidth: %d\n"
2424	"\tHeight: %d\n"
2425	"\tWidthInBytes: %d\n"
2426	"\tEnable: %d\n"
2427	"\tColumn: %d\n"
2428	"\tRow: %d\n",
2429	pPointerAttributes->Flags, pPointerAttributes->Width, pPointerAttributes->Height,
2430	pPointerAttributes->WidthInBytes, pPointerAttributes->Enable, pPointerAttributes->Column,
2431	pPointerAttributes->Row));
2432	dprintf(("\tBytes attached: %d\n", RequestPacket->InputBufferLength - sizeof(VIDEO_POINTER_ATTRIBUTES)));
2433	#endif
2434	#ifndef VBOX_WITH_HGSMI
2435	Result = vboxUpdatePointerShape(pPointerAttributes, RequestPacket->InputBufferLength);
2436	#else
2437	Result = vboxUpdatePointerShape((PDEVICE_EXTENSION)HwDeviceExtension, pPointerAttributes, RequestPacket->InputBufferLength);
2438	#endif /* VBOX_WITH_HGSMI */
2439	if (!Result)
2440	dprintf(("VBoxVideo::VBoxVideoStartIO: Could not set hardware pointer -> fallback\n"));
2441	} else
2442	{
2443	dprintf(("VBoxVideo::VBoxVideoStartIO: Fallback to software pointer\n"));
2444	// fallback to software pointer
2445	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2446	Result = FALSE;
2447	}
2448	break;
2449	}
2450
2451	// query pointer information
2452	case IOCTL_VIDEO_QUERY_POINTER_ATTR:
2453	{
2454	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_QUERY_POINTER_ATTR\n"));
2455	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2456	Result = FALSE;
2457	break;
2458	}
2459
2460	// set the pointer position
2461	case IOCTL_VIDEO_SET_POINTER_POSITION:
2462	{
2463	// find out whether the host wants absolute positioning
2464	/// @todo this is now obsolete - remove it?
2465	if (vboxQueryHostWantsAbsolute())
2466	Result = ShowPointer(HwDeviceExtension);
2467	else
2468	{
2469	// fallback to software pointer
2470	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2471	Result = FALSE;
2472	}
2473	break;
2474	}
2475
2476	// query the pointer position
2477	case IOCTL_VIDEO_QUERY_POINTER_POSITION:
2478	{
2479	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_QUERY_POINTER_POSITION\n"));
2480	if (RequestPacket->OutputBufferLength < sizeof(VIDEO_POINTER_POSITION))
2481	{
2482	dprintf(("VBoxVideo::VBoxVideoStartIO: Output buffer too small!\n"));
2483	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2484	return TRUE;
2485	}
2486	Result = FALSE;
2487	uint16_t mousePosX;
2488	uint16_t mousePosY;
2489	if (vboxQueryPointerPos(&mousePosX, &mousePosY))
2490	{
2491	PVIDEO_POINTER_POSITION pointerPos = (PVIDEO_POINTER_POSITION)RequestPacket->OutputBuffer;
2492	PVIDEO_MODE_INFORMATION ModeInfo;
2493	ModeInfo = &VideoModes[((PDEVICE_EXTENSION)HwDeviceExtension)->CurrentMode - 1];
2494	// map from 0xFFFF to the current resolution
2495	pointerPos->Column = (SHORT)(mousePosX / (0xFFFF / ModeInfo->VisScreenWidth));
2496	pointerPos->Row = (SHORT)(mousePosY / (0xFFFF / ModeInfo->VisScreenHeight));
2497	RequestPacket->StatusBlock->Information = sizeof(VIDEO_POINTER_POSITION);
2498	Result = TRUE;
2499	}
2500	if (!Result)
2501	{
2502	// fallback to software pointer
2503	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2504	}
2505	break;
2506	}
2507
2508	// Determine hardware cursor capabilities. We will always report that we are
2509	// very capable even though the host might not want to do pointer integration.
2510	// This is done because we can still return errors on the actual calls later to
2511	// make the display driver go to the fallback routines.
2512	case IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES:
2513	{
2514	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES\n"));
2515	if (RequestPacket->OutputBufferLength < sizeof(VIDEO_POINTER_CAPABILITIES))
2516	{
2517	dprintf(("VBoxVideo::VBoxVideoStartIO: Output buffer too small!\n"));
2518	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2519	return TRUE;
2520	}
2521	PVIDEO_POINTER_CAPABILITIES pCaps = (PVIDEO_POINTER_CAPABILITIES)RequestPacket->OutputBuffer;
2522	pCaps->Flags = VIDEO_MODE_ASYNC_POINTER \|
2523	VIDEO_MODE_COLOR_POINTER \|
2524	VIDEO_MODE_MONO_POINTER;
2525	// for now we go with 64x64 cursors
2526	pCaps->MaxWidth = 64;
2527	pCaps->MaxHeight = 64;
2528	// that doesn't seem to be relevant, VBoxDisp doesn't use it
2529	pCaps->HWPtrBitmapStart = -1;
2530	pCaps->HWPtrBitmapEnd = -1;
2531	RequestPacket->StatusBlock->Information = sizeof(VIDEO_POINTER_CAPABILITIES);
2532	Result = TRUE;
2533	break;
2534	}
2535
2536	/* Attach/detach DualView devices */
2537	case IOCTL_VIDEO_SWITCH_DUALVIEW:
2538	{
2539	ULONG ulAttach;
2540
2541	ulAttach = *((PULONG)RequestPacket->InputBuffer);
2542	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_SWITCH_DUALVIEW[%d] (%ld)\n", pDevExt->iDevice, ulAttach));
2543
2544	if (pDevExt->iDevice > 0)
2545	{
2546	pDevExt->u.secondary.bEnabled = (BOOLEAN)ulAttach;
2547	}
2548	Result = TRUE;
2549	break;
2550	}
2551
2552	case IOCTL_VIDEO_INTERPRET_DISPLAY_MEMORY:
2553	{
2554	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_INTERPRET_DISPLAY_MEMORY\n"));
2555
2556	if (pDevExt->pPrimary->u.primary.bVBoxVideoSupported)
2557	{
2558	/* The display driver must have prepared the monitor information. */
2559	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_VBOX_VIDEO);
2560	VideoPortWritePortUlong((PULONG)VBE_DISPI_IOPORT_DATA, VBOX_VIDEO_INTERPRET_DISPLAY_MEMORY_BASE + pDevExt->iDevice);
2561	}
2562	else
2563	{
2564	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2565	}
2566	Result = pDevExt->pPrimary->u.primary.bVBoxVideoSupported;
2567	break;
2568	}
2569
2570	#ifndef VBOX_WITH_HGSMI
2571	case IOCTL_VIDEO_QUERY_DISPLAY_INFO:
2572	{
2573	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_QUERY_DISPLAY_INFO\n"));
2574
2575	if (RequestPacket->OutputBufferLength < sizeof(QUERYDISPLAYINFORESULT))
2576	{
2577	dprintf(("VBoxVideo::VBoxVideoStartIO: Output buffer too small: %d needed: %d!!!\n",
2578	RequestPacket->OutputBufferLength, sizeof(QUERYDISPLAYINFORESULT)));
2579	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2580	return FALSE;
2581	}
2582
2583	QUERYDISPLAYINFORESULT pDispInfo = (QUERYDISPLAYINFORESULT )RequestPacket->OutputBuffer;
2584
2585	pDispInfo->iDevice = pDevExt->iDevice;
2586	pDispInfo->u32DisplayInfoSize = pDevExt->pPrimary->u.primary.ulDisplayInformationSize;
2587
2588	RequestPacket->StatusBlock->Information = sizeof(QUERYDISPLAYINFORESULT);
2589	Result = TRUE;
2590
2591	break;
2592	}
2593	#endif /* !VBOX_WITH_HGSMI */
2594
2595	case IOCTL_VIDEO_VBVA_ENABLE:
2596	{
2597	int rc;
2598	ULONG ulEnable;
2599
2600	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_VBVA_ENABLE\n"));
2601
2602	if (RequestPacket->InputBufferLength < sizeof(ULONG))
2603	{
2604	dprintf(("VBoxVideo::VBoxVideoStartIO: Input buffer too small: %d needed: %d!!!\n",
2605	RequestPacket->InputBufferLength, sizeof(ULONG)));
2606	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2607	return FALSE;
2608	}
2609
2610	if (RequestPacket->OutputBufferLength < sizeof(VBVAENABLERESULT))
2611	{
2612	dprintf(("VBoxVideo::VBoxVideoStartIO: Output buffer too small: %d needed: %d!!!\n",
2613	RequestPacket->OutputBufferLength, sizeof(VBVAENABLERESULT)));
2614	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2615	return FALSE;
2616	}
2617
2618	ulEnable = (ULONG )RequestPacket->InputBuffer;
2619	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_VBVA_ENABLE ulEnable = %08X\n", ulEnable));
2620
2621	rc = vboxVbvaEnable (pDevExt, ulEnable, (VBVAENABLERESULT *)RequestPacket->OutputBuffer);
2622	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_VBVA_ENABLE completed rc = %Rrc\n", rc));
2623
2624	if (RT_FAILURE (rc))
2625	{
2626	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_VBVA_ENABLE: failed to enable VBVA\n"));
2627	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2628	return FALSE;
2629	}
2630
2631	RequestPacket->StatusBlock->Information = sizeof(VBVAENABLERESULT);
2632	Result = TRUE;
2633
2634	break;
2635	}
2636
2637	/* Private ioctls */
2638	case IOCTL_VIDEO_VBOX_SETVISIBLEREGION:
2639	{
2640	uint32_t cRect = RequestPacket->InputBufferLength/sizeof(RTRECT);
2641	int rc;
2642
2643	dprintf(("IOCTL_VIDEO_VBOX_SETVISIBLEREGION cRect=%d\n", cRect));
2644	if ( RequestPacket->InputBufferLength < sizeof(RTRECT)
2645	\|\| RequestPacket->InputBufferLength != cRect*sizeof(RTRECT))
2646	{
2647	dprintf(("VBoxVideo::IOCTL_VIDEO_VBOX_SETVISIBLEREGION: Output buffer too small: %d needed: %d!!!\n",
2648	RequestPacket->OutputBufferLength, sizeof(RTRECT)));
2649	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2650	return FALSE;
2651	}
2652	/*
2653	* Inform the host about the visible region
2654	*/
2655	VMMDevVideoSetVisibleRegion *req = NULL;
2656
2657	rc = VbglGRAlloc ((VMMDevRequestHeader **)&req,
2658	sizeof (VMMDevVideoSetVisibleRegion) + (cRect-1)*sizeof(RTRECT),
2659	VMMDevReq_VideoSetVisibleRegion);
2660
2661	if (RT_SUCCESS(rc))
2662	{
2663	req->cRect = cRect;
2664	memcpy(&req->Rect, RequestPacket->InputBuffer, cRect*sizeof(RTRECT));
2665
2666	rc = VbglGRPerform (&req->header);
2667
2668	if (RT_SUCCESS(rc))
2669	{
2670	Result = TRUE;
2671	break;
2672	}
2673	}
2674
2675	dprintf(("VBoxVideo::VBoxVideoStartIO: Failed with rc=%x\n", rc));
2676	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2677	return FALSE;
2678	}
2679
2680	#ifdef VBOX_WITH_HGSMI
2681	case IOCTL_VIDEO_QUERY_HGSMI_INFO:
2682	{
2683	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_QUERY_HGSMI_INFO\n"));
2684
2685	if (RequestPacket->OutputBufferLength < sizeof(QUERYHGSMIRESULT))
2686	{
2687	dprintf(("VBoxVideo::VBoxVideoStartIO: Output buffer too small: %d needed: %d!!!\n",
2688	RequestPacket->OutputBufferLength, sizeof(QUERYHGSMIRESULT)));
2689	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2690	return FALSE;
2691	}
2692
2693	if (!pDevExt->pPrimary->u.primary.bHGSMI)
2694	{
2695	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2696	return FALSE;
2697	}
2698
2699	QUERYHGSMIRESULT pInfo = (QUERYHGSMIRESULT )RequestPacket->OutputBuffer;
2700
2701	pInfo->iDevice = pDevExt->iDevice;
2702	pInfo->ulFlags = 0;
2703
2704	/* Describes VRAM chunk for this display device. */
2705	pInfo->areaDisplay = pDevExt->areaDisplay;
2706
2707	pInfo->u32DisplayInfoSize = VBVA_DISPLAY_INFORMATION_SIZE;
2708	pInfo->u32MinVBVABufferSize = VBVA_MIN_BUFFER_SIZE;
2709
2710	pInfo->IOPortGuestCommand = pDevExt->pPrimary->u.primary.IOPortGuest;
2711
2712	RequestPacket->StatusBlock->Information = sizeof(QUERYHGSMIRESULT);
2713	Result = TRUE;
2714
2715	break;
2716	}
2717	case IOCTL_VIDEO_HGSMI_QUERY_CALLBACKS:
2718	{
2719	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_HGSMI_QUERY_CALLBACKS\n"));
2720
2721	if (RequestPacket->OutputBufferLength < sizeof(HGSMIQUERYCALLBACKS))
2722	{
2723	dprintf(("VBoxVideo::VBoxVideoStartIO: Output buffer too small: %d needed: %d!!!\n",
2724	RequestPacket->OutputBufferLength, sizeof(HGSMIQUERYCALLBACKS)));
2725	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2726	return FALSE;
2727	}
2728
2729	if (!pDevExt->pPrimary->u.primary.bHGSMI)
2730	{
2731	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2732	return FALSE;
2733	}
2734
2735	HGSMIQUERYCALLBACKS pInfo = (HGSMIQUERYCALLBACKS )RequestPacket->OutputBuffer;
2736
2737	pInfo->hContext = pDevExt;
2738	pInfo->pfnCompletionHandler = hgsmiHostCmdComplete;
2739	pInfo->pfnRequestCommandsHandler = hgsmiHostCmdRequest;
2740
2741	RequestPacket->StatusBlock->Information = sizeof(HGSMIQUERYCALLBACKS);
2742	Result = TRUE;
2743	break;
2744	}
2745	case IOCTL_VIDEO_HGSMI_QUERY_PORTPROCS:
2746	{
2747	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_HGSMI_QUERY_PORTPROCS\n"));
2748
2749	if (RequestPacket->OutputBufferLength < sizeof(HGSMIQUERYCPORTPROCS))
2750	{
2751	dprintf(("VBoxVideo::VBoxVideoStartIO: Output buffer too small: %d needed: %d!!!\n",
2752	RequestPacket->OutputBufferLength, sizeof(HGSMIQUERYCPORTPROCS)));
2753	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2754	return FALSE;
2755	}
2756
2757	if (!pDevExt->pPrimary->u.primary.bHGSMI)
2758	{
2759	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2760	return FALSE;
2761	}
2762
2763	HGSMIQUERYCPORTPROCS pInfo = (HGSMIQUERYCPORTPROCS )RequestPacket->OutputBuffer;
2764	pInfo->pContext = pDevExt->pPrimary;
2765	pInfo->VideoPortProcs = pDevExt->pPrimary->u.primary.VideoPortProcs;
2766
2767	RequestPacket->StatusBlock->Information = sizeof(HGSMIQUERYCPORTPROCS);
2768	Result = TRUE;
2769	break;
2770	}
2771	case IOCTL_VIDEO_HGSMI_HANDLER_ENABLE:
2772	{
2773	dprintf(("VBoxVideo::VBoxVideoStartIO: IOCTL_VIDEO_HGSMI_HANDLER_ENABLE\n"));
2774
2775	if (RequestPacket->InputBufferLength< sizeof(HGSMIHANDLERENABLE))
2776	{
2777	dprintf(("VBoxVideo::VBoxVideoStartIO: Output buffer too small: %d needed: %d!!!\n",
2778	RequestPacket->InputBufferLength, sizeof(HGSMIHANDLERENABLE)));
2779	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2780	return FALSE;
2781	}
2782
2783	if (!pDevExt->pPrimary->u.primary.bHGSMI)
2784	{
2785	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2786	return FALSE;
2787	}
2788
2789	HGSMIHANDLERENABLE pInfo = (HGSMIHANDLERENABLE )RequestPacket->InputBuffer;
2790
2791	int rc = vboxVBVAChannelDisplayEnable(pDevExt->pPrimary,
2792	pDevExt->iDevice,
2793	pInfo->u8Channel);
2794	if(RT_FAILURE(rc))
2795	{
2796	RequestPacket->StatusBlock->Status = ERROR_INVALID_NAME;
2797	}
2798	Result = TRUE;
2799	break;
2800	}
2801	case IOCTL_VIDEO_HGSMI_HANDLER_DISABLE:
2802	{
2803	/* TODO: implement */
2804	if (!pDevExt->pPrimary->u.primary.bHGSMI)
2805	{
2806	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2807	return FALSE;
2808	}
2809	break;
2810	}
2811	# ifdef VBOX_WITH_VIDEOHWACCEL
2812	case IOCTL_VIDEO_VHWA_QUERY_INFO:
2813	{
2814	if (RequestPacket->OutputBufferLength < sizeof (VHWAQUERYINFO))
2815	{
2816	dprintf(("VBoxVideo::VBoxVideoStartIO: Output buffer too small: %d needed: %d!!!\n",
2817	RequestPacket->OutputBufferLength, sizeof(VHWAQUERYINFO)));
2818	RequestPacket->StatusBlock->Status = ERROR_INSUFFICIENT_BUFFER;
2819	return FALSE;
2820	}
2821
2822	if (!pDevExt->pPrimary->u.primary.bHGSMI)
2823	{
2824	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2825	return FALSE;
2826	}
2827
2828	VHWAQUERYINFO pInfo = (VHWAQUERYINFO )RequestPacket->OutputBuffer;
2829	pInfo->offVramBase = (ULONG_PTR)pDevExt->ulFrameBufferOffset;
2830	RequestPacket->StatusBlock->Information = sizeof (VHWAQUERYINFO);
2831	Result = TRUE;
2832	break;
2833	}
2834	# endif
2835	#endif /* VBOX_WITH_HGSMI */
2836	default:
2837	dprintf(("VBoxVideo::VBoxVideoStartIO: Unsupported %p, fn %d(0x%x)\n",
2838	RequestPacket->IoControlCode,
2839	(RequestPacket->IoControlCode >> 2) & 0xFFF,
2840	(RequestPacket->IoControlCode >> 2) & 0xFFF));
2841	RequestPacket->StatusBlock->Status = ERROR_INVALID_FUNCTION;
2842	return FALSE;
2843	}
2844
2845	if (Result)
2846	RequestPacket->StatusBlock->Status = NO_ERROR;
2847	else
2848	RequestPacket->StatusBlock->Information = 0;
2849
2850	// dprintf(("VBoxVideo::VBoxVideoStartIO: Completed\n"));
2851
2852	return TRUE;
2853	}
2854
2855	/**
2856	* VBoxVideoReset HW
2857	*
2858	* Resets the video hardware.
2859	*/
2860	BOOLEAN VBoxVideoResetHW(PVOID HwDeviceExtension, ULONG Columns, ULONG Rows)
2861	{
2862	dprintf(("VBoxVideo::VBoxVideoResetHW\n"));
2863
2864	PDEVICE_EXTENSION pDevExt = (PDEVICE_EXTENSION)HwDeviceExtension;
2865
2866	if (pDevExt->iDevice > 0)
2867	{
2868	dprintf(("VBoxVideo::VBoxVideoResetHW: Skipping for non-primary display %d\n",
2869	pDevExt->iDevice));
2870	return TRUE;
2871	}
2872
2873	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ENABLE);
2874	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, VBE_DISPI_DISABLED);
2875
2876	if (pDevExt->u.primary.pvReqFlush != NULL)
2877	{
2878	VbglGRFree ((VMMDevRequestHeader *)pDevExt->u.primary.pvReqFlush);
2879	pDevExt->u.primary.pvReqFlush = NULL;
2880	}
2881
2882	VbglTerminate ();
2883
2884	VBoxUnmapAdapterMemory (pDevExt, &pDevExt->u.primary.pvMiniportHeap, pDevExt->u.primary.cbMiniportHeap);
2885	VBoxUnmapAdapterInformation (pDevExt);
2886
2887	return TRUE;
2888	}
2889
2890	/**
2891	* VBoxVideoGetPowerState
2892	*
2893	* Queries whether the device can support the requested power state.
2894	*/
2895	VP_STATUS VBoxVideoGetPowerState(PVOID HwDeviceExtension, ULONG HwId,
2896	PVIDEO_POWER_MANAGEMENT VideoPowerControl)
2897	{
2898	dprintf(("VBoxVideo::VBoxVideoGetPowerState\n"));
2899	return NO_ERROR;
2900	}
2901
2902	/**
2903	* VBoxVideoSetPowerState
2904	*
2905	* Sets the power state of the specified device
2906	*/
2907	VP_STATUS VBoxVideoSetPowerState(PVOID HwDeviceExtension, ULONG HwId,
2908	PVIDEO_POWER_MANAGEMENT VideoPowerControl)
2909	{
2910	dprintf(("VBoxVideo::VBoxVideoSetPowerState\n"));
2911	return NO_ERROR;
2912	}
2913	#endif /* #ifndef VBOXWDDM */
2914
2915	/**
2916	* VBoxVideoSetGraphicsCap
2917	*
2918	* Tells the host whether or not we currently support graphics in the
2919	* additions
2920	*/
2921	BOOLEAN FASTCALL VBoxVideoSetGraphicsCap(BOOLEAN isEnabled)
2922	{
2923	VMMDevReqGuestCapabilities2 *req = NULL;
2924	int rc;
2925
2926	rc = VbglGRAlloc ((VMMDevRequestHeader **)&req,
2927	sizeof (VMMDevReqGuestCapabilities2),
2928	VMMDevReq_SetGuestCapabilities);
2929
2930	if (!RT_SUCCESS(rc))
2931	dprintf(("VBoxVideoSetGraphicsCap: failed to allocate a request, rc=%Rrc\n", rc));
2932	else
2933	{
2934	req->u32OrMask = isEnabled ? VMMDEV_GUEST_SUPPORTS_GRAPHICS : 0;
2935	req->u32NotMask = isEnabled ? 0 : VMMDEV_GUEST_SUPPORTS_GRAPHICS;
2936
2937	rc = VbglGRPerform (&req->header);
2938	if (RT_FAILURE(rc))
2939	dprintf(("VBoxVideoSetGraphicsCap: request failed, rc = %Rrc\n", rc));
2940	}
2941	if (req != NULL)
2942	VbglGRFree (&req->header);
2943	return RT_SUCCESS(rc);
2944	}
2945
2946
2947	BOOLEAN FASTCALL VBoxVideoSetCurrentModePerform(PDEVICE_EXTENSION DeviceExtension,
2948	USHORT width, USHORT height, USHORT bpp
2949	#ifdef VBOXWDDM
2950	, ULONG offDisplay
2951	#endif
2952	)
2953	{
2954	/* set the mode characteristics */
2955	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_XRES);
2956	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, width);
2957	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_YRES);
2958	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, height);
2959	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_BPP);
2960	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, bpp);
2961	/* enable the mode */
2962	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ENABLE);
2963	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, VBE_DISPI_ENABLED \| VBE_DISPI_LFB_ENABLED);
2964	#ifdef VBOXWDDM
2965	/* encode linear offDisplay to xOffset & yOffset to ensure offset fits USHORT */
2966	ULONG cbLine = VBOXWDDM_ROUNDBOUND(((width * bpp) + 7) / 8, 4);
2967	ULONG xOffset = offDisplay % cbLine;
2968	ULONG yOffset = offDisplay / cbLine;
2969	Assert(xOffset <= 0xffff);
2970	Assert(yOffset <= 0xffff);
2971	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_X_OFFSET);
2972	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, (USHORT)xOffset);
2973	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_Y_OFFSET);
2974	VBoxVideoCmnPortWriteUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, (USHORT)yOffset);
2975	#endif
2976	/** @todo read from the port to see if the mode switch was successful */
2977
2978	/* Tell the host that we now support graphics in the additions.
2979	* @todo: Keep old behaviour, because VBoxVideoResetDevice is called on every graphics
2980	* mode switch and causes an OFF/ON sequence which is not handled by frontends
2981	* (for example Qt GUI debug build asserts when seamless is being enabled).
2982	*/
2983	// VBoxVideoSetGraphicsCap(TRUE);
2984
2985	return TRUE;
2986	}
2987
2988	#ifndef VBOXWDDM
2989
2990	/**
2991	* VBoxVideoSetCurrentMode
2992	*
2993	* Sets the adapter to the specified operating mode.
2994	*/
2995	BOOLEAN FASTCALL VBoxVideoSetCurrentMode(PDEVICE_EXTENSION DeviceExtension,
2996	PVIDEO_MODE RequestedMode, PSTATUS_BLOCK StatusBlock)
2997	{
2998	PVIDEO_MODE_INFORMATION ModeInfo;
2999
3000	dprintf(("VBoxVideo::VBoxVideoSetCurrentMode: mode = %d\n", RequestedMode->RequestedMode));
3001
3002	DeviceExtension->CurrentMode = RequestedMode->RequestedMode;
3003	ModeInfo = &VideoModes[DeviceExtension->CurrentMode - 1];
3004	dprintf(("VBoxVideoSetCurrentMode: width: %d, height: %d, bpp: %d\n", ModeInfo->VisScreenWidth,
3005	ModeInfo->VisScreenHeight, ModeInfo->BitsPerPlane));
3006
3007	DeviceExtension->CurrentModeWidth = ModeInfo->VisScreenWidth;
3008	DeviceExtension->CurrentModeHeight = ModeInfo->VisScreenHeight;
3009	DeviceExtension->CurrentModeBPP = ModeInfo->BitsPerPlane;
3010
3011	if (DeviceExtension->iDevice > 0)
3012	{
3013	dprintf(("VBoxVideo::VBoxVideoSetCurrentMode: Skipping for non-primary display %d\n",
3014	DeviceExtension->iDevice));
3015	return TRUE;
3016	}
3017
3018	return VBoxVideoSetCurrentModePerform(DeviceExtension,
3019	(USHORT)ModeInfo->VisScreenWidth,
3020	(USHORT)ModeInfo->VisScreenHeight,
3021	(USHORT)ModeInfo->BitsPerPlane);
3022	}
3023
3024	/*
3025	* VBoxVideoResetDevice
3026	*
3027	* Resets the video hardware to the default mode, to which it was initialized
3028	* at system boot.
3029	*/
3030
3031	BOOLEAN FASTCALL VBoxVideoResetDevice(
3032	PDEVICE_EXTENSION DeviceExtension,
3033	PSTATUS_BLOCK StatusBlock)
3034	{
3035	dprintf(("VBoxVideo::VBoxVideoResetDevice\n"));
3036
3037	if (DeviceExtension->iDevice > 0)
3038	{
3039	/* If the device is the secondary display, however, it is recommended that no action be taken. */
3040	dprintf(("VBoxVideo::VBoxVideoResetDevice: Skipping for non-primary display %d\n",
3041	DeviceExtension->iDevice));
3042	return TRUE;
3043	}
3044
3045	#if 0
3046	/* Don't disable the extended video mode. This would only switch the video mode
3047	* to <current width> x <current height> x 0 bpp which is not what we want. And
3048	* even worse, it causes an disturbing additional mode switch */
3049	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ENABLE);
3050	VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, VBE_DISPI_DISABLED);
3051	#endif
3052
3053	/* Tell the host that we no longer support graphics in the additions
3054	* @todo: Keep old behaviour, see similar comment in VBoxVideoSetCurrentMode for details.
3055	*/
3056	// VBoxVideoSetGraphicsCap(FALSE);
3057	return TRUE;
3058	}
3059
3060	/**
3061	* VBoxVideoMapVideoMemory
3062	*
3063	* Maps the video hardware frame buffer and video RAM into the virtual address
3064	* space of the requestor.
3065	*/
3066	BOOLEAN FASTCALL VBoxVideoMapVideoMemory(PDEVICE_EXTENSION DeviceExtension,
3067	PVIDEO_MEMORY RequestedAddress,
3068	PVIDEO_MEMORY_INFORMATION MapInformation,
3069	PSTATUS_BLOCK StatusBlock)
3070	{
3071	PHYSICAL_ADDRESS FrameBuffer;
3072	ULONG inIoSpace = 0;
3073	VP_STATUS Status;
3074
3075	dprintf(("VBoxVideo::VBoxVideoMapVideoMemory: fb offset 0x%x\n", DeviceExtension->ulFrameBufferOffset));
3076
3077	FrameBuffer.QuadPart = VBE_DISPI_LFB_PHYSICAL_ADDRESS + DeviceExtension->ulFrameBufferOffset;
3078
3079	MapInformation->VideoRamBase = RequestedAddress->RequestedVirtualAddress;
3080	#ifndef VBOX_WITH_HGSMI
3081	MapInformation->VideoRamLength = DeviceExtension->pPrimary->u.primary.ulMaxFrameBufferSize
3082	+ DeviceExtension->pPrimary->u.primary.ulDisplayInformationSize;
3083	#else
3084	MapInformation->VideoRamLength = DeviceExtension->pPrimary->u.primary.ulMaxFrameBufferSize;
3085	#endif /* VBOX_WITH_HGSMI */
3086
3087	Status = VideoPortMapMemory(DeviceExtension, FrameBuffer,
3088	&MapInformation->VideoRamLength, &inIoSpace,
3089	&MapInformation->VideoRamBase);
3090
3091	if (Status == NO_ERROR)
3092	{
3093	MapInformation->FrameBufferBase = (PUCHAR)MapInformation->VideoRamBase;
3094	MapInformation->FrameBufferLength =
3095	VideoModes[DeviceExtension->CurrentMode - 1].VisScreenHeight *
3096	VideoModes[DeviceExtension->CurrentMode - 1].ScreenStride;
3097	StatusBlock->Information = sizeof(VIDEO_MEMORY_INFORMATION);
3098
3099	/* Save the new framebuffer size */
3100	DeviceExtension->ulFrameBufferSize = MapInformation->FrameBufferLength;
3101	#ifdef VBOX_WITH_HGSMI
3102	HGSMIAreaInitialize (&DeviceExtension->areaDisplay,
3103	MapInformation->FrameBufferBase,
3104	MapInformation->FrameBufferLength,
3105	DeviceExtension->ulFrameBufferOffset);
3106	#endif /* VBOX_WITH_HGSMI */
3107	return TRUE;
3108	}
3109
3110	return FALSE;
3111	}
3112
3113	/**
3114	* VBoxVideoUnmapVideoMemory
3115	*
3116	* Releases a mapping between the virtual address space and the adapter's
3117	* frame buffer and video RAM.
3118	*/
3119	BOOLEAN FASTCALL VBoxVideoUnmapVideoMemory(PDEVICE_EXTENSION DeviceExtension,
3120	PVIDEO_MEMORY VideoMemory, PSTATUS_BLOCK StatusBlock)
3121	{
3122	dprintf(("VBoxVideo::VBoxVideoUnmapVideoMemory\n"));
3123	#ifdef VBOX_WITH_HGSMI
3124	HGSMIAreaClear (&DeviceExtension->areaDisplay);
3125	#endif /* VBOX_WITH_HGSMI */
3126	VideoPortUnmapMemory(DeviceExtension, VideoMemory->RequestedVirtualAddress, NULL);
3127	return TRUE;
3128	}
3129
3130	/**
3131	* VBoxVideoQueryNumAvailModes
3132	*
3133	* Returns the number of video modes supported by the adapter and the size
3134	* in bytes of the video mode information, which can be used to allocate a
3135	* buffer for an IOCTL_VIDEO_QUERY_AVAIL_MODES request.
3136	*/
3137	BOOLEAN FASTCALL VBoxVideoQueryNumAvailModes(PDEVICE_EXTENSION DeviceExtension,
3138	PVIDEO_NUM_MODES Modes, PSTATUS_BLOCK StatusBlock)
3139	{
3140	dprintf(("VBoxVideo::VBoxVideoQueryNumAvailModes\n"));
3141	/* calculate the video modes table */
3142	VBoxBuildModesTable(DeviceExtension);
3143	Modes->NumModes = gNumVideoModes;
3144	Modes->ModeInformationLength = sizeof(VIDEO_MODE_INFORMATION);
3145	StatusBlock->Information = sizeof(VIDEO_NUM_MODES);
3146	dprintf(("VBoxVideo::VBoxVideoQueryNumAvailModes: number of modes: %d\n", Modes->NumModes));
3147	return TRUE;
3148	}
3149
3150	/**
3151	* VBoxVideoQueryAvailModes
3152	*
3153	* Returns information about each video mode supported by the adapter.
3154	*/
3155	BOOLEAN FASTCALL VBoxVideoQueryAvailModes(PDEVICE_EXTENSION DeviceExtension,
3156	PVIDEO_MODE_INFORMATION ReturnedModes,
3157	PSTATUS_BLOCK StatusBlock)
3158	{
3159	ULONG Size;
3160
3161	dprintf(("VBoxVideo::VBoxVideoQueryAvailModes\n"));
3162
3163	Size = gNumVideoModes * sizeof(VIDEO_MODE_INFORMATION);
3164	VideoPortMoveMemory(ReturnedModes, VideoModes, Size);
3165	StatusBlock->Information = Size;
3166
3167	return TRUE;
3168	}
3169
3170	/**
3171	* VBoxVideoQueryCurrentMode
3172	*
3173	* Returns information about current video mode.
3174	*/
3175	BOOLEAN FASTCALL VBoxVideoQueryCurrentMode(PDEVICE_EXTENSION DeviceExtension,
3176	PVIDEO_MODE_INFORMATION VideoModeInfo,
3177	PSTATUS_BLOCK StatusBlock)
3178	{
3179	dprintf(("VBoxVideo::VBoxVideoQueryCurrentMode\n"));
3180
3181	StatusBlock->Information = sizeof(VIDEO_MODE_INFORMATION);
3182	VideoPortMoveMemory(VideoModeInfo, VideoModes + DeviceExtension->CurrentMode - 1, 1);
3183
3184	return TRUE;
3185	}
3186	#endif /* ifndef VBOXWDDM */
3187	/*
3188	* VBoxVideoSetColorRegisters
3189	*
3190	* Sets the adapter's color registers to the specified RGB values. There
3191	* are code paths in this function, one generic and one for VGA compatible
3192	* controllers. The latter is needed for Bochs, where the generic one isn't
3193	* yet implemented.
3194	*/
3195
3196	BOOLEAN FASTCALL VBoxVideoSetColorRegisters(
3197	PDEVICE_EXTENSION DeviceExtension,
3198	PVIDEO_CLUT ColorLookUpTable,
3199	PSTATUS_BLOCK StatusBlock)
3200	{
3201	LONG Entry;
3202
3203	dprintf(("VBoxVideo::VBoxVideoSetColorRegisters first entry %d num entries %d\n", ColorLookUpTable->FirstEntry, ColorLookUpTable->NumEntries));
3204
3205	if (ColorLookUpTable->NumEntries + ColorLookUpTable->FirstEntry > 256)
3206	return FALSE;
3207
3208	for (Entry = ColorLookUpTable->FirstEntry;
3209	Entry < ColorLookUpTable->NumEntries + ColorLookUpTable->FirstEntry;
3210	Entry++)
3211	{
3212	VBoxVideoCmnPortWriteUchar((PUCHAR)0x03c8, (UCHAR)Entry);
3213	VBoxVideoCmnPortWriteUchar((PUCHAR)0x03c9, ColorLookUpTable->LookupTable[Entry].RgbArray.Red);
3214	VBoxVideoCmnPortWriteUchar((PUCHAR)0x03c9, ColorLookUpTable->LookupTable[Entry].RgbArray.Green);
3215	VBoxVideoCmnPortWriteUchar((PUCHAR)0x03c9, ColorLookUpTable->LookupTable[Entry].RgbArray.Blue);
3216	}
3217
3218	return TRUE;
3219	}
3220
3221	#ifndef VBOXWDDM
3222
3223	VP_STATUS VBoxVideoGetChildDescriptor(
3224	PVOID HwDeviceExtension,
3225	PVIDEO_CHILD_ENUM_INFO ChildEnumInfo,
3226	PVIDEO_CHILD_TYPE VideoChildType,
3227	PUCHAR pChildDescriptor,
3228	PULONG pUId,
3229	PULONG pUnused)
3230	{
3231	dprintf(("VBoxVideo::VBoxVideoGetChildDescriptor: HwDeviceExtension = %p, ChildEnumInfo = %p\n",
3232	HwDeviceExtension, ChildEnumInfo));
3233
3234	DEVICE_EXTENSION pDevExt = (DEVICE_EXTENSION )HwDeviceExtension;
3235
3236	if (ChildEnumInfo->ChildIndex > 0)
3237	{
3238	if ((int)ChildEnumInfo->ChildIndex <= pDevExt->pPrimary->u.primary.cDisplays)
3239	{
3240	*VideoChildType = Monitor;
3241	*pUId = ChildEnumInfo->ChildIndex;
3242
3243	return VIDEO_ENUM_MORE_DEVICES;
3244	}
3245	}
3246
3247	return ERROR_NO_MORE_DEVICES;
3248	}
3249
3250
3251	static DECLCALLBACK(void) vboxVbvaFlush (void *pvFlush)
3252	{
3253	DEVICE_EXTENSION pDevExt = (DEVICE_EXTENSION )pvFlush;
3254	DEVICE_EXTENSION *pPrimaryDevExt = pDevExt? pDevExt->pPrimary: NULL;
3255
3256	if (pPrimaryDevExt)
3257	{
3258	VMMDevVideoAccelFlush req = (VMMDevVideoAccelFlush )pPrimaryDevExt->u.primary.pvReqFlush;
3259
3260	if (req)
3261	{
3262	int rc = VbglGRPerform (&req->header);
3263
3264	if (RT_FAILURE(rc))
3265	{
3266	dprintf(("VBoxVideo::vbvaFlush: rc = %Rrc!\n", rc));
3267	}
3268	}
3269	}
3270
3271	return;
3272	}
3273
3274	int vboxVbvaEnable (PDEVICE_EXTENSION pDevExt, ULONG ulEnable, VBVAENABLERESULT *pVbvaResult)
3275	{
3276	int rc = VINF_SUCCESS;
3277
3278	dprintf(("VBoxVideo::vboxVbvaEnable: ulEnable = %08X, pVbvaResult = %p\n", ulEnable, pVbvaResult));
3279
3280	/*
3281	* Query the VMMDev memory pointer. There we need VBVAMemory.
3282	*/
3283	VMMDevMemory *pVMMDevMemory = NULL;
3284
3285	rc = VbglQueryVMMDevMemory (&pVMMDevMemory);
3286
3287	dprintf(("VBoxVideo::vboxVbvaEnable: VbglQueryVMMDevMemory rc = %d, pVMMDevMemory = %p\n", rc, pVMMDevMemory));
3288
3289	if (pDevExt->iDevice > 0)
3290	{
3291	DEVICE_EXTENSION *pPrimaryDevExt = pDevExt->pPrimary;
3292
3293	dprintf(("VBoxVideo::vboxVbvaEnable: Skipping for non-primary display %d\n",
3294	pDevExt->iDevice));
3295
3296	if ( ulEnable
3297	&& pPrimaryDevExt->u.primary.ulVbvaEnabled)
3298	{
3299	pVbvaResult->pVbvaMemory = &pVMMDevMemory->vbvaMemory;
3300	pVbvaResult->pfnFlush = vboxVbvaFlush;
3301	pVbvaResult->pvFlush = pDevExt;
3302	}
3303	else
3304	{
3305	VBoxVideoCmnMemZero(&pVbvaResult, sizeof(VBVAENABLERESULT));
3306	}
3307
3308	return rc;
3309	}
3310
3311	if (RT_SUCCESS(rc))
3312	{
3313	/* Allocate the memory block for VMMDevReq_VideoAccelFlush request. */
3314	if (pDevExt->u.primary.pvReqFlush == NULL)
3315	{
3316	VMMDevVideoAccelFlush *req = NULL;
3317
3318	rc = VbglGRAlloc ((VMMDevRequestHeader **)&req,
3319	sizeof (VMMDevVideoAccelFlush),
3320	VMMDevReq_VideoAccelFlush);
3321
3322	if (RT_SUCCESS (rc))
3323	{
3324	pDevExt->u.primary.pvReqFlush = req;
3325	}
3326	else
3327	{
3328	dprintf(("VBoxVideo::vboxVbvaEnable: VbglGRAlloc (VMMDevReq_VideoAccelFlush) rc = %Rrc!!!\n", rc));
3329	}
3330	}
3331	}
3332	else
3333	{
3334	dprintf(("VBoxVideo::vboxVbvaEnable: VbglQueryVMMDevMemory rc = %Rrc!!!\n", rc));
3335	}
3336
3337	if (RT_SUCCESS(rc))
3338	{
3339	ULONG ulEnabled = 0;
3340
3341	/*
3342	* Tell host that VBVA status is changed.
3343	*/
3344	VMMDevVideoAccelEnable *req = NULL;
3345
3346	rc = VbglGRAlloc ((VMMDevRequestHeader **)&req,
3347	sizeof (VMMDevVideoAccelEnable),
3348	VMMDevReq_VideoAccelEnable);
3349
3350	if (RT_SUCCESS(rc))
3351	{
3352	req->u32Enable = ulEnable;
3353	req->cbRingBuffer = VBVA_RING_BUFFER_SIZE;
3354	req->fu32Status = 0;
3355
3356	rc = VbglGRPerform (&req->header);
3357
3358	if (RT_SUCCESS(rc))
3359	{
3360	if (req->fu32Status & VBVA_F_STATUS_ACCEPTED)
3361	{
3362	/*
3363	* Initialize the result information and VBVA memory.
3364	*/
3365	if (req->fu32Status & VBVA_F_STATUS_ENABLED)
3366	{
3367	pVbvaResult->pVbvaMemory = &pVMMDevMemory->vbvaMemory;
3368	pVbvaResult->pfnFlush = vboxVbvaFlush;
3369	pVbvaResult->pvFlush = pDevExt;
3370	ulEnabled = 1;
3371	}
3372	else
3373	{
3374	VBoxVideoCmnMemZero(&pVbvaResult, sizeof(VBVAENABLERESULT));
3375	}
3376
3377	dprintf(("VBoxVideo::vboxVbvaEnable: success.\n"));
3378	}
3379	else
3380	{
3381	dprintf(("VBoxVideo::vboxVbvaEnable: not accepted.\n"));
3382
3383	/* Disable VBVA for old hosts. */
3384	req->u32Enable = 0;
3385	req->cbRingBuffer = VBVA_RING_BUFFER_SIZE;
3386	req->fu32Status = 0;
3387
3388	VbglGRPerform (&req->header);
3389
3390	rc = VERR_NOT_SUPPORTED;
3391	}
3392	}
3393	else
3394	{
3395	dprintf(("VBoxVideo::vboxVbvaEnable: rc = %Rrc!\n", rc));
3396	}
3397
3398	VbglGRFree (&req->header);
3399	}
3400	else
3401	{
3402	dprintf(("VBoxVideo::vboxVbvaEnable: VbglGRAlloc rc = %Rrc!\n", rc));
3403	}
3404
3405	pDevExt->pPrimary->u.primary.ulVbvaEnabled = ulEnabled;
3406	}
3407
3408	return rc;
3409	}
3410	#endif

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source: vbox/trunk/src/VBox/Additions/WINNT/Graphics/Miniport/VBoxVideo.cpp@ 32127

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