VBoxMPVidModes.cpp@ 83830

Last change on this file since 83830 was 83830, checked in by vboxsync, 5 years ago
Add/NT/Graphics: VC++ 14.1 warnings. [build fix] bugref:8489
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1	/* $Id: VBoxMPVidModes.cpp 83830 2020-04-19 13:58:24Z vboxsync $ */
2	/** @file
3	* VBox Miniport video modes related functions
4	*/
5
6	/*
7	* Copyright (C) 2011-2020 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	#include "VBoxMPCommon.h"
19
20	#ifndef DOXYGEN_RUNNING
21	#if RT_MSC_PREREQ(RT_MSC_VER_VS2005) && RT_MSC_PREREQ(RT_MSC_VER_VS2017) /* bird: MS fixed swprintf to be standard-conforming... */
22	# define _INC_SWPRINTF_INL_
23	extern "C" int __cdecl swprintf(wchar_t , const wchar_t , ...);
24	# endif
25	#endif
26	#include <wchar.h>
27	#include <VBoxVideoVBE.h>
28
29	#ifdef VBOX_WITH_WDDM
30	# define VBOX_WITHOUT_24BPP_MODES
31	#endif
32
33	/* Custom video modes which are being read from registry at driver startup. */
34	static VIDEO_MODE_INFORMATION g_CustomVideoModes[VBOX_VIDEO_MAX_SCREENS] = { 0 };
35
36	static BOOLEAN
37	VBoxMPValidateVideoModeParamsGuest(PVBOXMP_DEVEXT pExt, uint32_t iDisplay, uint32_t xres, uint32_t yres, uint32_t bpp)
38	{
39	RT_NOREF(iDisplay, xres, yres);
40
41	switch (bpp)
42	{
43	case 32:
44	break;
45	case 24:
46	#ifdef VBOX_WITHOUT_24BPP_MODES
47	return FALSE;
48	#else
49	break;
50	#endif
51	case 16:
52	break;
53	case 8:
54	#ifndef VBOX_WITH_8BPP_MODES
55	return FALSE;
56	#else
57	#ifdef VBOX_XPDM_MINIPORT
58	if (pExt->iDevice != 0) /* Secondary monitors do not support 8 bit */
59	return FALSE;
60	#endif
61	break;
62	#endif
63	default:
64	WARN(("Unexpected bpp (%d)", bpp));
65	return FALSE;
66	}
67	return TRUE;
68	}
69
70	/* Fills given video mode BPP related fields */
71	static void
72	VBoxFillVidModeBPP(VIDEO_MODE_INFORMATION *pMode, ULONG bitsR, ULONG bitsG, ULONG bitsB,
73	ULONG maskR, ULONG maskG, ULONG maskB)
74	{
75	pMode->NumberRedBits = bitsR;
76	pMode->NumberGreenBits = bitsG;
77	pMode->NumberBlueBits = bitsB;
78	pMode->RedMask = maskR;
79	pMode->GreenMask = maskG;
80	pMode->BlueMask = maskB;
81	}
82
83	/* Fills given video mode structure */
84	static void
85	VBoxFillVidModeInfo(VIDEO_MODE_INFORMATION *pMode, ULONG xres, ULONG yres, ULONG bpp, ULONG index, ULONG yoffset)
86	{
87	LOGF(("%dx%d:%d (idx=%d, yoffset=%d)", xres, yres, bpp, index, yoffset));
88
89	memset(pMode, 0, sizeof(VIDEO_MODE_INFORMATION));
90
91	/Common entries/
92	pMode->Length = sizeof(VIDEO_MODE_INFORMATION);
93	pMode->ModeIndex = index;
94	pMode->VisScreenWidth = xres;
95	pMode->VisScreenHeight = yres - yoffset;
96	pMode->ScreenStride = xres * ((bpp + 7) / 8);
97	pMode->NumberOfPlanes = 1;
98	pMode->BitsPerPlane = bpp;
99	pMode->Frequency = 60;
100	pMode->XMillimeter = 320;
101	pMode->YMillimeter = 240;
102	pMode->VideoMemoryBitmapWidth = xres;
103	pMode->VideoMemoryBitmapHeight = yres - yoffset;
104	pMode->DriverSpecificAttributeFlags = 0;
105	pMode->AttributeFlags = VIDEO_MODE_GRAPHICS \| VIDEO_MODE_COLOR \| VIDEO_MODE_NO_OFF_SCREEN;
106
107	/BPP related entries/
108	switch (bpp)
109	{
110	#ifdef VBOX_WITH_8BPP_MODES
111	case 8:
112	VBoxFillVidModeBPP(pMode, 6, 6, 6, 0, 0, 0);
113
114	pMode->AttributeFlags \|= VIDEO_MODE_PALETTE_DRIVEN \| VIDEO_MODE_MANAGED_PALETTE;
115	break;
116	#endif
117	case 16:
118	VBoxFillVidModeBPP(pMode, 5, 6, 5, 0xF800, 0x7E0, 0x1F);
119	break;
120	case 24:
121	case 32:
122	VBoxFillVidModeBPP(pMode, 8, 8, 8, 0xFF0000, 0xFF00, 0xFF);
123	break;
124	default:
125	Assert(0);
126	break;
127	}
128	}
129
130	void VBoxMPCmnInitCustomVideoModes(PVBOXMP_DEVEXT pExt)
131	{
132	VBOXMPCMNREGISTRY Registry;
133	VP_STATUS rc;
134	int iMode;
135
136	LOGF_ENTER();
137
138	rc = VBoxMPCmnRegInit(pExt, &Registry);
139	VBOXMP_WARN_VPS(rc);
140
141	/* Initialize all custom modes to the 800x600x32 */
142	VBoxFillVidModeInfo(&g_CustomVideoModes[0], 800, 600, 32, 0, 0);
143	for (iMode=1; iMode<RT_ELEMENTS(g_CustomVideoModes); ++iMode)
144	{
145	g_CustomVideoModes[iMode] = g_CustomVideoModes[0];
146	}
147
148	/* Read stored custom resolution info from registry */
149	for (iMode=0; iMode<VBoxCommonFromDeviceExt(pExt)->cDisplays; ++iMode)
150	{
151	uint32_t CustomXRes = 0, CustomYRes = 0, CustomBPP = 0;
152
153	if (iMode==0)
154	{
155	/First name without a suffix/
156	rc = VBoxMPCmnRegQueryDword(Registry, L"CustomXRes", &CustomXRes);
157	VBOXMP_WARN_VPS_NOBP(rc);
158	rc = VBoxMPCmnRegQueryDword(Registry, L"CustomYRes", &CustomYRes);
159	VBOXMP_WARN_VPS_NOBP(rc);
160	rc = VBoxMPCmnRegQueryDword(Registry, L"CustomBPP", &CustomBPP);
161	VBOXMP_WARN_VPS_NOBP(rc);
162	}
163	else
164	{
165	wchar_t keyname[32];
166	swprintf(keyname, L"CustomXRes%d", iMode);
167	rc = VBoxMPCmnRegQueryDword(Registry, keyname, &CustomXRes);
168	VBOXMP_WARN_VPS_NOBP(rc);
169	swprintf(keyname, L"CustomYRes%d", iMode);
170	rc = VBoxMPCmnRegQueryDword(Registry, keyname, &CustomYRes);
171	VBOXMP_WARN_VPS_NOBP(rc);
172	swprintf(keyname, L"CustomBPP%d", iMode);
173	rc = VBoxMPCmnRegQueryDword(Registry, keyname, &CustomBPP);
174	VBOXMP_WARN_VPS_NOBP(rc);
175	}
176
177	LOG(("got stored custom resolution[%d] %dx%dx%d", iMode, CustomXRes, CustomYRes, CustomBPP));
178
179	if (CustomXRes \|\| CustomYRes \|\| CustomBPP)
180	{
181	if (CustomXRes == 0)
182	{
183	CustomXRes = g_CustomVideoModes[iMode].VisScreenWidth;
184	}
185	if (CustomYRes == 0)
186	{
187	CustomYRes = g_CustomVideoModes[iMode].VisScreenHeight;
188	}
189	if (CustomBPP == 0)
190	{
191	CustomBPP = g_CustomVideoModes[iMode].BitsPerPlane;
192	}
193
194	if (VBoxMPValidateVideoModeParamsGuest(pExt, iMode, CustomXRes, CustomYRes, CustomBPP))
195	{
196	VBoxFillVidModeInfo(&g_CustomVideoModes[iMode], CustomXRes, CustomYRes, CustomBPP, 0, 0);
197	}
198	}
199	}
200
201	rc = VBoxMPCmnRegFini(Registry);
202	VBOXMP_WARN_VPS(rc);
203	LOGF_LEAVE();
204	}
205
206	VIDEO_MODE_INFORMATION *VBoxMPCmnGetCustomVideoModeInfo(ULONG ulIndex)
207	{
208	return (ulIndex<RT_ELEMENTS(g_CustomVideoModes)) ? &g_CustomVideoModes[ulIndex] : NULL;
209	}
210
211	#ifdef VBOX_XPDM_MINIPORT
212	VIDEO_MODE_INFORMATION* VBoxMPCmnGetVideoModeInfo(PVBOXMP_DEVEXT pExt, ULONG ulIndex)
213	{
214	return (ulIndex<RT_ELEMENTS(pExt->aVideoModes)) ? &pExt->aVideoModes[ulIndex] : NULL;
215	}
216	#endif
217
218	static bool VBoxMPVideoModesMatch(const PVIDEO_MODE_INFORMATION pMode1, const PVIDEO_MODE_INFORMATION pMode2)
219	{
220	return pMode1->VisScreenHeight == pMode2->VisScreenHeight
221	&& pMode1->VisScreenWidth == pMode2->VisScreenWidth
222	&& pMode1->BitsPerPlane == pMode2->BitsPerPlane;
223	}
224
225	static int
226	VBoxMPFindVideoMode(const PVIDEO_MODE_INFORMATION pModesTable, int cModes, const PVIDEO_MODE_INFORMATION pMode)
227	{
228	for (int i = 0; i < cModes; ++i)
229	{
230	if (VBoxMPVideoModesMatch(pMode, &pModesTable[i]))
231	{
232	return i;
233	}
234	}
235	return -1;
236	}
237
238	/* Helper function to dynamically build our table of standard video
239	* modes. We take the amount of VRAM and create modes with standard
240	* geometries until we've either reached the maximum number of modes
241	* or the available VRAM does not allow for additional modes.
242	* We also check registry for manually added video modes.
243	* Returns number of modes added to the table.
244	*/
245	static uint32_t
246	VBoxMPFillModesTable(PVBOXMP_DEVEXT pExt, int iDisplay, PVIDEO_MODE_INFORMATION pModesTable, size_t tableSize,
247	int32_t *pPrefModeIdx)
248	{
249	/* the resolution matrix */
250	struct
251	{
252	uint16_t xRes;
253	uint16_t yRes;
254	} resolutionMatrix[] =
255	{
256	/* standard modes */
257	{ 640, 480 },
258	{ 800, 600 },
259	{ 1024, 768 },
260	{ 1152, 864 },
261	{ 1280, 960 },
262	{ 1280, 1024 },
263	{ 1400, 1050 },
264	{ 1600, 1200 },
265	{ 1920, 1440 },
266	#ifndef VBOX_WITH_WDDM
267	/* multi screen modes with 1280x1024 */
268	{ 2560, 1024 },
269	{ 3840, 1024 },
270	{ 5120, 1024 },
271	/* multi screen modes with 1600x1200 */
272	{ 3200, 1200 },
273	{ 4800, 1200 },
274	{ 6400, 1200 },
275	#endif
276	};
277
278	#ifdef VBOX_XPDM_MINIPORT
279	ULONG vramSize = pExt->pPrimary->u.primary.ulMaxFrameBufferSize;
280	#else
281	ULONG vramSize = vboxWddmVramCpuVisibleSegmentSize(pExt);
282	vramSize /= pExt->u.primary.commonInfo.cDisplays;
283	if (!g_VBoxDisplayOnly)
284	{
285	/* at least two surfaces will be needed: primary & shadow */
286	vramSize /= 2;
287	}
288	vramSize &= ~PAGE_OFFSET_MASK;
289	#endif
290
291	uint32_t iMode=0, iPrefIdx=0;
292	/* there are 4 color depths: 8, 16, 24 and 32bpp and we reserve 50% of the modes for other sources */
293	size_t maxModesPerColorDepth = VBOXMP_MAX_VIDEO_MODES / 2 / 4;
294
295	/* Always add 800x600 video modes. Windows XP+ needs at least 800x600 resolution
296	* and fallbacks to 800x600x4bpp VGA mode if the driver did not report suitable modes.
297	* This resolution could be rejected by a low resolution host (netbooks, etc).
298	*/
299	#ifdef VBOX_WITH_8BPP_MODES
300	int bytesPerPixel=1;
301	#else
302	int bytesPerPixel=2;
303	#endif
304	for (; bytesPerPixel<=4; bytesPerPixel++)
305	{
306	int bitsPerPixel = 8*bytesPerPixel;
307
308	if (800600bytesPerPixel > (LONG)vramSize)
309	{
310	/* we don't have enough VRAM for this mode */
311	continue;
312	}
313
314	if (!VBoxMPValidateVideoModeParamsGuest(pExt, iMode, 800, 600, bitsPerPixel))
315	continue;
316
317	VBoxFillVidModeInfo(&pModesTable[iMode], 800, 600, bitsPerPixel, iMode+1, 0);
318
319	if (32==bitsPerPixel)
320	{
321	iPrefIdx = iMode;
322	}
323	++iMode;
324	}
325
326	/* Query yoffset from the host */
327	ULONG yOffset = VBoxGetHeightReduction();
328
329	/* Iterate through our static resolution table and add supported video modes for different bpp's */
330	#ifdef VBOX_WITH_8BPP_MODES
331	bytesPerPixel=1;
332	#else
333	bytesPerPixel=2;
334	#endif
335	for (; bytesPerPixel<=4; bytesPerPixel++)
336	{
337	int bitsPerPixel = 8*bytesPerPixel;
338	size_t cAdded, resIndex;
339
340	for (cAdded=0, resIndex=0; resIndex<RT_ELEMENTS(resolutionMatrix) && cAdded<maxModesPerColorDepth; resIndex++)
341	{
342	if (resolutionMatrix[resIndex].xRes * resolutionMatrix[resIndex].yRes * bytesPerPixel > (LONG)vramSize)
343	{
344	/* we don't have enough VRAM for this mode */
345	continue;
346	}
347
348	if (yOffset == 0 && resolutionMatrix[resIndex].xRes == 800 && resolutionMatrix[resIndex].yRes == 600)
349	{
350	/* this mode was already added */
351	continue;
352	}
353
354	if (
355	#ifdef VBOX_WDDM_MINIPORT
356	/* 1024x768 resolution is a minimal resolutions for win8 to make most metro apps run.
357	* For small host display resolutions, host will dislike the mode 1024x768 and above
358	* if the framebuffer window requires scrolling to fit the guest resolution.
359	* So add 1024x768 resolution for win8 guest to allow user switch to it */
360	( (VBoxQueryWinVersion(NULL) != WIN8 && VBoxQueryWinVersion(NULL) != WIN81)
361	\|\| resolutionMatrix[resIndex].xRes != 1024
362	\|\| resolutionMatrix[resIndex].yRes != 768)
363	&&
364	#endif
365	!VBoxLikesVideoMode(iDisplay, resolutionMatrix[resIndex].xRes,
366	resolutionMatrix[resIndex].yRes - yOffset, bitsPerPixel))
367	{
368	/* host doesn't like this mode */
369	continue;
370	}
371
372	if (!VBoxMPValidateVideoModeParamsGuest(pExt, iDisplay, resolutionMatrix[resIndex].xRes, resolutionMatrix[resIndex].yRes, bitsPerPixel))
373	{
374	/* guest does not like this mode */
375	continue;
376	}
377
378	/* Sanity check, we shouldn't ever get here */
379	if (iMode >= tableSize)
380	{
381	WARN(("video modes table overflow!"));
382	break;
383	}
384
385	VBoxFillVidModeInfo(&pModesTable[iMode], resolutionMatrix[resIndex].xRes, resolutionMatrix[resIndex].yRes, bitsPerPixel, iMode+1, yOffset);
386	++iMode;
387	++cAdded;
388	}
389	}
390
391	/* Check registry for manually added modes, up to 128 entries is supported
392	* Give up on the first error encountered.
393	*/
394	VBOXMPCMNREGISTRY Registry;
395	int fPrefSet=0;
396	VP_STATUS rc;
397
398	rc = VBoxMPCmnRegInit(pExt, &Registry);
399	VBOXMP_WARN_VPS(rc);
400
401	for (int curKey=0; curKey<128; curKey++)
402	{
403	if (iMode>=tableSize)
404	{
405	WARN(("ignoring possible custom mode(s), table is full!"));
406	break;
407	}
408
409	wchar_t keyname[24];
410	uint32_t xres, yres, bpp = 0;
411
412	swprintf(keyname, L"CustomMode%dWidth", curKey);
413	rc = VBoxMPCmnRegQueryDword(Registry, keyname, &xres);
414	VBOXMP_CHECK_VPS_BREAK(rc);
415
416	swprintf(keyname, L"CustomMode%dHeight", curKey);
417	rc = VBoxMPCmnRegQueryDword(Registry, keyname, &yres);
418	VBOXMP_CHECK_VPS_BREAK(rc);
419
420	swprintf(keyname, L"CustomMode%dBPP", curKey);
421	rc = VBoxMPCmnRegQueryDword(Registry, keyname, &bpp);
422	VBOXMP_CHECK_VPS_BREAK(rc);
423
424	LOG(("got custom mode[%u]=%ux%u:%u", curKey, xres, yres, bpp));
425
426	/* round down width to be a multiple of 8 if necessary */
427	if (!VBoxCommonFromDeviceExt(pExt)->fAnyX)
428	{
429	xres &= 0xFFF8;
430	}
431
432	if ( (xres > (1 << 16))
433	\|\| (yres > (1 << 16))
434	\|\| ( (bpp != 16)
435	&& (bpp != 24)
436	&& (bpp != 32)))
437	{
438	/* incorrect values */
439	break;
440	}
441
442	/* does it fit within our VRAM? */
443	if (xres * yres * (bpp / 8) > vramSize)
444	{
445	/* we don't have enough VRAM for this mode */
446	break;
447	}
448
449	if (!VBoxLikesVideoMode(iDisplay, xres, yres, bpp))
450	{
451	/* host doesn't like this mode */
452	break;
453	}
454
455	if (!VBoxMPValidateVideoModeParamsGuest(pExt, iDisplay, xres, yres, bpp))
456	{
457	/* guest does not like this mode */
458	continue;
459	}
460
461	LOG(("adding video mode from registry."));
462
463	VBoxFillVidModeInfo(&pModesTable[iMode], xres, yres, bpp, iMode+1, yOffset);
464
465	if (!fPrefSet)
466	{
467	fPrefSet = 1;
468	iPrefIdx = iMode;
469	}
470	#ifdef VBOX_WDDM_MINIPORT
471	/check if the same mode has been added to the table already/
472	int foundIdx = VBoxMPFindVideoMode(pModesTable, iMode, &pModesTable[iMode]);
473
474	if (foundIdx>=0)
475	{
476	if (iPrefIdx==iMode)
477	{
478	iPrefIdx=foundIdx;
479	}
480	}
481	else
482	#endif
483	{
484	++iMode;
485	}
486	}
487
488	rc = VBoxMPCmnRegFini(Registry);
489	VBOXMP_WARN_VPS(rc);
490
491	if (pPrefModeIdx)
492	{
493	*pPrefModeIdx = iPrefIdx;
494	}
495
496	return iMode;
497	}
498
499	/* Returns if we're in the first mode change, ie doesn't have valid video mode set yet */
500	static BOOLEAN VBoxMPIsStartingUp(PVBOXMP_DEVEXT pExt, uint32_t iDisplay)
501	{
502	#ifdef VBOX_XPDM_MINIPORT
503	RT_NOREF(iDisplay);
504	return (pExt->CurrentMode == 0);
505	#else
506	VBOXWDDM_SOURCE *pSource = &pExt->aSources[iDisplay];
507	return !pSource->AllocData.SurfDesc.width \|\| !pSource->AllocData.SurfDesc.height;
508	#endif
509	}
510
511	#ifdef VBOX_WDDM_MINIPORT
512	static const uint32_t g_aVBoxVidModesSupportedBpps[] = {
513	32
514	#ifndef VBOX_WITHOUT_24BPP_MODES
515	, 24
516	#endif
517	, 16
518	#ifdef VBOX_WITH_8BPP_MODES
519	, 8
520	#endif
521	};
522	DECLINLINE(BOOLEAN) VBoxMPIsSupportedBpp(uint32_t bpp)
523	{
524	for (int i = 0; i < RT_ELEMENTS(g_aVBoxVidModesSupportedBpps); ++i)
525	{
526	if (bpp == g_aVBoxVidModesSupportedBpps[i])
527	return TRUE;
528	}
529	return FALSE;
530	}
531
532	DECLINLINE(uint32_t) VBoxMPAdjustBpp(uint32_t bpp)
533	{
534	if (VBoxMPIsSupportedBpp(bpp))
535	return bpp;
536	Assert(g_aVBoxVidModesSupportedBpps[0] == 32);
537	return g_aVBoxVidModesSupportedBpps[0];
538	}
539	#endif
540	/* Updates missing video mode params with current values,
541	* Checks if resulting mode is liked by the host and fits into VRAM.
542	* Returns TRUE if resulting mode could be used.
543	*/
544	static BOOLEAN
545	VBoxMPValidateVideoModeParams(PVBOXMP_DEVEXT pExt, uint32_t iDisplay, uint32_t &xres, uint32_t &yres, uint32_t &bpp)
546	{
547	/* Make sure all important video mode values are set */
548	if (VBoxMPIsStartingUp(pExt, iDisplay))
549	{
550	/* Use stored custom values only if nothing was read from host. */
551	xres = xres ? xres:g_CustomVideoModes[iDisplay].VisScreenWidth;
552	yres = yres ? yres:g_CustomVideoModes[iDisplay].VisScreenHeight;
553	bpp = bpp ? bpp :g_CustomVideoModes[iDisplay].BitsPerPlane;
554	}
555	else
556	{
557	/* Use current values for field which weren't read from host. */
558	#ifdef VBOX_XPDM_MINIPORT
559	xres = xres ? xres:pExt->CurrentModeWidth;
560	yres = yres ? yres:pExt->CurrentModeHeight;
561	bpp = bpp ? bpp :pExt->CurrentModeBPP;
562	#else
563	PVBOXWDDM_ALLOC_DATA pAllocData = pExt->aSources[iDisplay].pPrimaryAllocation ?
564	&pExt->aSources[iDisplay].pPrimaryAllocation->AllocData
565	: &pExt->aSources[iDisplay].AllocData;
566	xres = xres ? xres:pAllocData->SurfDesc.width;
567	yres = yres ? yres:pAllocData->SurfDesc.height;
568	/* VBox WDDM driver does not allow 24 modes since OS could choose the 24bit mode as default in that case,
569	* the pExt->aSources[iDisplay].AllocData.SurfDesc.bpp could be initially 24 though,
570	* i.e. when driver occurs the current mode on driver load via DxgkCbAcquirePostDisplayOwnership
571	* and until driver reports the supported modes
572	* This is true for Win8 Display-Only driver currently since DxgkCbAcquirePostDisplayOwnership is only used by it
573	*
574	* This is why we need to adjust the current mode bpp to the value we actually report as supported */
575	bpp = bpp ? bpp : VBoxMPAdjustBpp(pAllocData->SurfDesc.bpp);
576	#endif
577	}
578
579	/* Round down width to be a multiple of 8 if necessary */
580	if (!VBoxCommonFromDeviceExt(pExt)->fAnyX)
581	{
582	xres &= 0xFFF8;
583	}
584
585	/* We always need bpp to be set */
586	if (!bpp)
587	{
588	bpp=32;
589	}
590
591	if (!VBoxMPValidateVideoModeParamsGuest(pExt, iDisplay, xres, yres, bpp))
592	{
593	WARN(("GUEST does not like special mode %dx%d:%d for display %d", xres, yres, bpp, iDisplay));
594	return FALSE;
595	}
596
597	/* Check if host likes this mode */
598	if (!VBoxLikesVideoMode(iDisplay, xres, yres, bpp))
599	{
600	WARN_NOBP(("HOST does not like special mode %dx%d:%d for display %d", xres, yres, bpp, iDisplay));
601	return FALSE;
602	}
603
604	#ifdef VBOX_XPDM_MINIPORT
605	ULONG vramSize = pExt->pPrimary->u.primary.ulMaxFrameBufferSize;
606	#else
607	ULONG vramSize = vboxWddmVramCpuVisibleSegmentSize(pExt);
608	vramSize /= pExt->u.primary.commonInfo.cDisplays;
609	if (!g_VBoxDisplayOnly)
610	{
611	/* at least two surfaces will be needed: primary & shadow */
612	vramSize /= 2;
613	}
614	vramSize &= ~PAGE_OFFSET_MASK;
615	#endif
616
617	/* Check that values are valid and mode fits into VRAM */
618	if (!xres \|\| !yres
619	\|\| !((bpp == 16)
620	#ifdef VBOX_WITH_8BPP_MODES
621	\|\| (bpp == 8)
622	#endif
623	\|\| (bpp == 24)
624	\|\| (bpp == 32)))
625	{
626	LOG(("invalid params for special mode %dx%d:%d", xres, yres, bpp));
627	return FALSE;
628	}
629
630
631
632	if ((xres * yres * (bpp / 8) >= vramSize))
633	{
634	/* Store values of last reported release log message to avoid log flooding. */
635	static uint32_t s_xresNoVRAM=0, s_yresNoVRAM=0, s_bppNoVRAM=0;
636
637	LOG(("not enough VRAM for video mode %dx%dx%dbpp. Available: %d bytes. Required: more than %d bytes.",
638	xres, yres, bpp, vramSize, xres * yres * (bpp / 8)));
639
640	s_xresNoVRAM = xres;
641	s_yresNoVRAM = yres;
642	s_bppNoVRAM = bpp;
643
644	return FALSE;
645	}
646
647	return TRUE;
648	}
649
650	/* Checks if there's a pending video mode change hint,
651	* and fills pPendingMode with associated info.
652	* returns TRUE if there's a pending change. Otherwise returns FALSE.
653	*/
654	static BOOLEAN
655	VBoxMPCheckPendingVideoMode(PVBOXMP_DEVEXT pExt, PVIDEO_MODE_INFORMATION pPendingMode)
656	{
657	uint32_t xres=0, yres=0, bpp=0, display=0;
658
659	/* Check if there's a pending display change request for this display */
660	if (VBoxQueryDisplayRequest(&xres, &yres, &bpp, &display) && (xres \|\| yres \|\| bpp))
661	{
662	if (display >= RT_ELEMENTS(g_CustomVideoModes))
663	{
664	/display = RT_ELEMENTS(g_CustomVideoModes) - 1;/
665	WARN(("VBoxQueryDisplayRequest returned invalid display number %d", display));
666	return FALSE;
667	}
668	}
669	else
670	{
671	LOG(("no pending request"));
672	return FALSE;
673	}
674
675	/* Correct video mode params and check if host likes it */
676	if (VBoxMPValidateVideoModeParams(pExt, display, xres, yres, bpp))
677	{
678	VBoxFillVidModeInfo(pPendingMode, xres, yres, bpp, display, 0);
679	return TRUE;
680	}
681
682	return FALSE;
683	}
684
685	/* Save custom mode info to registry */
686	static void VBoxMPRegSaveModeInfo(PVBOXMP_DEVEXT pExt, uint32_t iDisplay, PVIDEO_MODE_INFORMATION pMode)
687	{
688	VBOXMPCMNREGISTRY Registry;
689	VP_STATUS rc;
690
691	rc = VBoxMPCmnRegInit(pExt, &Registry);
692	VBOXMP_WARN_VPS(rc);
693
694	if (iDisplay==0)
695	{
696	/First name without a suffix/
697	rc = VBoxMPCmnRegSetDword(Registry, L"CustomXRes", pMode->VisScreenWidth);
698	VBOXMP_WARN_VPS(rc);
699	rc = VBoxMPCmnRegSetDword(Registry, L"CustomYRes", pMode->VisScreenHeight);
700	VBOXMP_WARN_VPS(rc);
701	rc = VBoxMPCmnRegSetDword(Registry, L"CustomBPP", pMode->BitsPerPlane);
702	VBOXMP_WARN_VPS(rc);
703	}
704	else
705	{
706	wchar_t keyname[32];
707	swprintf(keyname, L"CustomXRes%d", iDisplay);
708	rc = VBoxMPCmnRegSetDword(Registry, keyname, pMode->VisScreenWidth);
709	VBOXMP_WARN_VPS(rc);
710	swprintf(keyname, L"CustomYRes%d", iDisplay);
711	rc = VBoxMPCmnRegSetDword(Registry, keyname, pMode->VisScreenHeight);
712	VBOXMP_WARN_VPS(rc);
713	swprintf(keyname, L"CustomBPP%d", iDisplay);
714	rc = VBoxMPCmnRegSetDword(Registry, keyname, pMode->BitsPerPlane);
715	VBOXMP_WARN_VPS(rc);
716	}
717
718	rc = VBoxMPCmnRegFini(Registry);
719	VBOXMP_WARN_VPS(rc);
720	}
721
722	#ifdef VBOX_XPDM_MINIPORT
723	VIDEO_MODE_INFORMATION* VBoxMPXpdmCurrentVideoMode(PVBOXMP_DEVEXT pExt)
724	{
725	return VBoxMPCmnGetVideoModeInfo(pExt, pExt->CurrentMode - 1);
726	}
727
728	ULONG VBoxMPXpdmGetVideoModesCount(PVBOXMP_DEVEXT pExt)
729	{
730	return pExt->cVideoModes;
731	}
732
733	/* Makes a table of video modes consisting of:
734	* Default modes
735	* Custom modes manually added to registry
736	* Custom modes for all displays (either from a display change hint or stored in registry)
737	* 2 special modes, for a pending display change for this adapter. See comments below.
738	*/
739	void VBoxMPXpdmBuildVideoModesTable(PVBOXMP_DEVEXT pExt)
740	{
741	uint32_t cStandartModes;
742	BOOLEAN bPending, bHaveSpecial;
743	VIDEO_MODE_INFORMATION specialMode;
744
745	/* Fill table with standart modes and ones manually added to registry.
746	* Up to VBOXMP_MAX_VIDEO_MODES elements can be used, the rest is reserved
747	* for custom mode alternating indexes.
748	*/
749	cStandartModes = VBoxMPFillModesTable(pExt, pExt->iDevice, pExt->aVideoModes, VBOXMP_MAX_VIDEO_MODES, NULL);
750
751	/* Add custom mode for this display to the table */
752	/* Make 2 entries in the video mode table. */
753	uint32_t iModeBase = cStandartModes;
754
755	/* Take the alternating index into account. */
756	BOOLEAN bAlternativeIndex = (pExt->iInvocationCounter % 2)? TRUE: FALSE;
757
758	uint32_t iSpecialMode = iModeBase + (bAlternativeIndex? 1: 0);
759	uint32_t iStandardMode = iModeBase + (bAlternativeIndex? 0: 1);
760
761	/* Fill the special mode. */
762	memcpy(&pExt->aVideoModes[iSpecialMode], &g_CustomVideoModes[pExt->iDevice], sizeof(VIDEO_MODE_INFORMATION));
763	pExt->aVideoModes[iSpecialMode].ModeIndex = iSpecialMode + 1;
764
765	/* Wipe the other entry so it is not selected. */
766	memcpy(&pExt->aVideoModes[iStandardMode], &pExt->aVideoModes[3], sizeof(VIDEO_MODE_INFORMATION));
767	pExt->aVideoModes[iStandardMode].ModeIndex = iStandardMode + 1;
768
769	LOG(("added special mode[%d] %dx%d:%d for display %d\n",
770	iSpecialMode,
771	pExt->aVideoModes[iSpecialMode].VisScreenWidth,
772	pExt->aVideoModes[iSpecialMode].VisScreenHeight,
773	pExt->aVideoModes[iSpecialMode].BitsPerPlane,
774	pExt->iDevice));
775
776	/* Check if host wants us to switch video mode and it's for this adapter */
777	bPending = VBoxMPCheckPendingVideoMode(pExt, &specialMode);
778	bHaveSpecial = bPending && (pExt->iDevice == specialMode.ModeIndex);
779	LOG(("bPending %d, pExt->iDevice %d, specialMode.ModeIndex %d",
780	bPending, pExt->iDevice, specialMode.ModeIndex));
781
782	/* Check the startup case */
783	if (!bHaveSpecial && VBoxMPIsStartingUp(pExt, pExt->iDevice))
784	{
785	uint32_t xres=0, yres=0, bpp=0;
786	LOG(("Startup for screen %d", pExt->iDevice));
787	/* Check if we could make valid mode from values stored to registry */
788	if (VBoxMPValidateVideoModeParams(pExt, pExt->iDevice, xres, yres, bpp))
789	{
790	LOG(("Startup for screen %d validated %dx%d %d", pExt->iDevice, xres, yres, bpp));
791	VBoxFillVidModeInfo(&specialMode, xres, yres, bpp, 0, 0);
792	bHaveSpecial = TRUE;
793	}
794	}
795
796	/* Update number of modes. Each display has 2 entries for alternating custom mode index. */
797	pExt->cVideoModes = cStandartModes + 2;
798
799	if (bHaveSpecial)
800	{
801	/* We need to alternate mode index entry for a pending mode change,
802	* else windows will ignore actual mode change call.
803	* Only alternate index if one of mode parameters changed and
804	* regardless of conditions always add 2 entries to the table.
805	*/
806	bAlternativeIndex = FALSE;
807
808	BOOLEAN bChanged = (pExt->Prev_xres!=specialMode.VisScreenWidth
809	\|\| pExt->Prev_yres!=specialMode.VisScreenHeight
810	\|\| pExt->Prev_bpp!=specialMode.BitsPerPlane);
811
812	LOG(("prev %dx%dx%d, special %dx%dx%d",
813	pExt->Prev_xres, pExt->Prev_yres, pExt->Prev_bpp,
814	specialMode.VisScreenWidth, specialMode.VisScreenHeight, specialMode.BitsPerPlane));
815
816	if (bChanged)
817	{
818	pExt->Prev_xres = specialMode.VisScreenWidth;
819	pExt->Prev_yres = specialMode.VisScreenHeight;
820	pExt->Prev_bpp = specialMode.BitsPerPlane;
821	}
822
823	/* Check if we need to alternate the index */
824	if (!VBoxMPIsStartingUp(pExt, pExt->iDevice))
825	{
826	if (bChanged)
827	{
828	pExt->iInvocationCounter++;
829	}
830
831	if (pExt->iInvocationCounter % 2)
832	{
833	bAlternativeIndex = TRUE;
834	}
835	}
836
837	uint32_t iSpecialModeElement = cStandartModes + (bAlternativeIndex? 1: 0);
838	uint32_t iSpecialModeElementOld = cStandartModes + (bAlternativeIndex? 0: 1);
839
840	LOG(("add special mode[%d] %dx%d:%d for display %d (bChanged=%d, bAlternativeIndex=%d)",
841	iSpecialModeElement, specialMode.VisScreenWidth, specialMode.VisScreenHeight, specialMode.BitsPerPlane,
842	pExt->iDevice, bChanged, bAlternativeIndex));
843
844	/* Add special mode to the table
845	* Note: Y offset isn't used for a host-supplied modes
846	*/
847	specialMode.ModeIndex = iSpecialModeElement + 1;
848	memcpy(&pExt->aVideoModes[iSpecialModeElement], &specialMode, sizeof(VIDEO_MODE_INFORMATION));
849
850	/* Save special mode in the custom modes table */
851	memcpy(&g_CustomVideoModes[pExt->iDevice], &specialMode, sizeof(VIDEO_MODE_INFORMATION));
852
853	/* Wipe the old entry so the special mode will be found in the new positions. */
854	memcpy(&pExt->aVideoModes[iSpecialModeElementOld], &pExt->aVideoModes[3], sizeof(VIDEO_MODE_INFORMATION));
855	pExt->aVideoModes[iSpecialModeElementOld].ModeIndex = iSpecialModeElementOld + 1;
856
857	/* Save special mode info to registry */
858	VBoxMPRegSaveModeInfo(pExt, pExt->iDevice, &specialMode);
859	}
860
861	#if defined(LOG_ENABLED)
862	do
863	{
864	LOG(("Filled %d modes for display %d", pExt->cVideoModes, pExt->iDevice));
865
866	for (uint32_t i=0; i < pExt->cVideoModes; ++i)
867	{
868	LOG(("Mode[%2d]: %4dx%4d:%2d (idx=%d)",
869	i, pExt->aVideoModes[i].VisScreenWidth, pExt->aVideoModes[i].VisScreenHeight,
870	pExt->aVideoModes[i].BitsPerPlane, pExt->aVideoModes[i].ModeIndex));
871	}
872	} while (0);
873	#endif
874	}
875	#endif /VBOX_XPDM_MINIPORT/

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source: vbox/trunk/src/VBox/Additions/WINNT/Graphics/Video/mp/common/VBoxMPVidModes.cpp@ 83830

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