VirtualBox

source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA_VBVA.cpp@ 33027

Last change on this file since 33027 was 32877, checked in by vboxsync, 14 years ago

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1/** @file
2 * VirtualBox Video Acceleration (VBVA).
3 */
4
5/*
6 * Copyright (C) 2006-2009 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#define LOG_GROUP LOG_GROUP_DEV_VGA
18#include <VBox/pdmifs.h>
19#include <VBox/pdmdev.h>
20#include <VBox/pgm.h>
21#include <VBox/ssm.h>
22#include <VBox/VMMDev.h>
23#include <VBox/VBoxVideo.h>
24#include <iprt/alloc.h>
25#include <iprt/assert.h>
26#include <iprt/asm.h>
27#include <iprt/string.h>
28#include <iprt/param.h>
29#ifdef VBOX_WITH_VIDEOHWACCEL
30#include <iprt/semaphore.h>
31#endif
32
33#include "DevVGA.h"
34
35/* A very detailed logging. */
36#if 0 // def DEBUG_sunlover
37#define LOGVBVABUFFER(a) LogFlow(a)
38#else
39#define LOGVBVABUFFER(a) do {} while(0)
40#endif
41
42typedef struct _VBVAPARTIALRECORD
43{
44 uint8_t *pu8;
45 uint32_t cb;
46} VBVAPARTIALRECORD;
47
48typedef struct _VBVAVIEW
49{
50 VBVAINFOVIEW view;
51 VBVAINFOSCREEN screen;
52 VBVABUFFER *pVBVA;
53 uint32_t u32VBVAOffset;
54 VBVAPARTIALRECORD partialRecord;
55} VBVAVIEW;
56
57typedef struct VBVAMOUSESHAPEINFO
58{
59 bool fSet;
60 bool fVisible;
61 bool fAlpha;
62 uint32_t u32HotX;
63 uint32_t u32HotY;
64 uint32_t u32Width;
65 uint32_t u32Height;
66 uint32_t cbShape;
67 uint32_t cbAllocated;
68 uint8_t *pu8Shape;
69} VBVAMOUSESHAPEINFO;
70
71/* @todo saved state: save and restore VBVACONTEXT */
72typedef struct _VBVACONTEXT
73{
74 uint32_t cViews;
75 VBVAVIEW aViews[64 /* @todo SchemaDefs::MaxGuestMonitors*/];
76 VBVAMOUSESHAPEINFO mouseShapeInfo;
77} VBVACONTEXT;
78
79/* Copies 'cb' bytes from the VBVA ring buffer to the 'pu8Dst'.
80 * Used for partial records or for records which cross the ring boundary.
81 */
82static void vbvaFetchBytes (VBVABUFFER *pVBVA, uint8_t *pu8Dst, uint32_t cb)
83{
84 /* @todo replace the 'if' with an assert. The caller must ensure this condition. */
85 if (cb >= pVBVA->cbData)
86 {
87 AssertMsgFailed (("cb = 0x%08X, ring buffer size 0x%08X", cb, pVBVA->cbData));
88 return;
89 }
90
91 const uint32_t u32BytesTillBoundary = pVBVA->cbData - pVBVA->off32Data;
92 const uint8_t *src = &pVBVA->au8Data[pVBVA->off32Data];
93 const int32_t i32Diff = cb - u32BytesTillBoundary;
94
95 if (i32Diff <= 0)
96 {
97 /* Chunk will not cross buffer boundary. */
98 memcpy (pu8Dst, src, cb);
99 }
100 else
101 {
102 /* Chunk crosses buffer boundary. */
103 memcpy (pu8Dst, src, u32BytesTillBoundary);
104 memcpy (pu8Dst + u32BytesTillBoundary, &pVBVA->au8Data[0], i32Diff);
105 }
106
107 /* Advance data offset. */
108 pVBVA->off32Data = (pVBVA->off32Data + cb) % pVBVA->cbData;
109
110 return;
111}
112
113
114static bool vbvaPartialRead (VBVAPARTIALRECORD *pPartialRecord, uint32_t cbRecord, VBVABUFFER *pVBVA)
115{
116 uint8_t *pu8New;
117
118 LOGVBVABUFFER(("vbvaPartialRead: p = %p, cb = %d, cbRecord 0x%08X\n",
119 pPartialRecord->pu8, pPartialRecord->cb, cbRecord));
120
121 if (pPartialRecord->pu8)
122 {
123 Assert (pPartialRecord->cb);
124 pu8New = (uint8_t *)RTMemRealloc (pPartialRecord->pu8, cbRecord);
125 }
126 else
127 {
128 Assert (!pPartialRecord->cb);
129 pu8New = (uint8_t *)RTMemAlloc (cbRecord);
130 }
131
132 if (!pu8New)
133 {
134 /* Memory allocation failed, fail the function. */
135 Log(("vbvaPartialRead: failed to (re)alocate memory for partial record!!! cbRecord 0x%08X\n",
136 cbRecord));
137
138 if (pPartialRecord->pu8)
139 {
140 RTMemFree (pPartialRecord->pu8);
141 }
142
143 pPartialRecord->pu8 = NULL;
144 pPartialRecord->cb = 0;
145
146 return false;
147 }
148
149 /* Fetch data from the ring buffer. */
150 vbvaFetchBytes (pVBVA, pu8New + pPartialRecord->cb, cbRecord - pPartialRecord->cb);
151
152 pPartialRecord->pu8 = pu8New;
153 pPartialRecord->cb = cbRecord;
154
155 return true;
156}
157
158/* For contiguous chunks just return the address in the buffer.
159 * For crossing boundary - allocate a buffer from heap.
160 */
161static bool vbvaFetchCmd (VBVAPARTIALRECORD *pPartialRecord, VBVABUFFER *pVBVA, VBVACMDHDR **ppHdr, uint32_t *pcbCmd)
162{
163 uint32_t indexRecordFirst = pVBVA->indexRecordFirst;
164 uint32_t indexRecordFree = pVBVA->indexRecordFree;
165
166 LOGVBVABUFFER(("first = %d, free = %d\n",
167 indexRecordFirst, indexRecordFree));
168
169 if (indexRecordFirst == indexRecordFree)
170 {
171 /* No records to process. Return without assigning output variables. */
172 return true;
173 }
174
175 VBVARECORD *pRecord = &pVBVA->aRecords[indexRecordFirst];
176
177 LOGVBVABUFFER(("cbRecord = 0x%08X\n", pRecord->cbRecord));
178
179 uint32_t cbRecord = pRecord->cbRecord & ~VBVA_F_RECORD_PARTIAL;
180
181 if (pPartialRecord->cb)
182 {
183 /* There is a partial read in process. Continue with it. */
184 Assert (pPartialRecord->pu8);
185
186 LOGVBVABUFFER(("continue partial record cb = %d cbRecord 0x%08X, first = %d, free = %d\n",
187 pPartialRecord->cb, pRecord->cbRecord, indexRecordFirst, indexRecordFree));
188
189 if (cbRecord > pPartialRecord->cb)
190 {
191 /* New data has been added to the record. */
192 if (!vbvaPartialRead (pPartialRecord, cbRecord, pVBVA))
193 {
194 return false;
195 }
196 }
197
198 if (!(pRecord->cbRecord & VBVA_F_RECORD_PARTIAL))
199 {
200 /* The record is completed by guest. Return it to the caller. */
201 *ppHdr = (VBVACMDHDR *)pPartialRecord->pu8;
202 *pcbCmd = pPartialRecord->cb;
203
204 pPartialRecord->pu8 = NULL;
205 pPartialRecord->cb = 0;
206
207 /* Advance the record index. */
208 pVBVA->indexRecordFirst = (indexRecordFirst + 1) % RT_ELEMENTS(pVBVA->aRecords);
209
210 LOGVBVABUFFER(("partial done ok, data = %d, free = %d\n",
211 pVBVA->off32Data, pVBVA->off32Free));
212 }
213
214 return true;
215 }
216
217 /* A new record need to be processed. */
218 if (pRecord->cbRecord & VBVA_F_RECORD_PARTIAL)
219 {
220 /* Current record is being written by guest. '=' is important here,
221 * because the guest will do a FLUSH at this condition.
222 * This partual record is too large for the ring buffer and must
223 * be accumulated in an allocated buffer.
224 */
225 if (cbRecord >= pVBVA->cbData - pVBVA->cbPartialWriteThreshold)
226 {
227 /* Partial read must be started. */
228 if (!vbvaPartialRead (pPartialRecord, cbRecord, pVBVA))
229 {
230 return false;
231 }
232
233 LOGVBVABUFFER(("started partial record cb = 0x%08X cbRecord 0x%08X, first = %d, free = %d\n",
234 pPartialRecord->cb, pRecord->cbRecord, indexRecordFirst, indexRecordFree));
235 }
236
237 return true;
238 }
239
240 /* Current record is complete. If it is not empty, process it. */
241 if (cbRecord)
242 {
243 /* The size of largest contiguos chunk in the ring biffer. */
244 uint32_t u32BytesTillBoundary = pVBVA->cbData - pVBVA->off32Data;
245
246 /* The pointer to data in the ring buffer. */
247 uint8_t *src = &pVBVA->au8Data[pVBVA->off32Data];
248
249 /* Fetch or point the data. */
250 if (u32BytesTillBoundary >= cbRecord)
251 {
252 /* The command does not cross buffer boundary. Return address in the buffer. */
253 *ppHdr = (VBVACMDHDR *)src;
254
255 /* Advance data offset. */
256 pVBVA->off32Data = (pVBVA->off32Data + cbRecord) % pVBVA->cbData;
257 }
258 else
259 {
260 /* The command crosses buffer boundary. Rare case, so not optimized. */
261 uint8_t *dst = (uint8_t *)RTMemAlloc (cbRecord);
262
263 if (!dst)
264 {
265 LogFlowFunc (("could not allocate %d bytes from heap!!!\n", cbRecord));
266 pVBVA->off32Data = (pVBVA->off32Data + cbRecord) % pVBVA->cbData;
267 return false;
268 }
269
270 vbvaFetchBytes (pVBVA, dst, cbRecord);
271
272 *ppHdr = (VBVACMDHDR *)dst;
273
274 LOGVBVABUFFER(("Allocated from heap %p\n", dst));
275 }
276 }
277
278 *pcbCmd = cbRecord;
279
280 /* Advance the record index. */
281 pVBVA->indexRecordFirst = (indexRecordFirst + 1) % RT_ELEMENTS(pVBVA->aRecords);
282
283 LOGVBVABUFFER(("done ok, data = %d, free = %d\n",
284 pVBVA->off32Data, pVBVA->off32Free));
285
286 return true;
287}
288
289static void vbvaReleaseCmd (VBVAPARTIALRECORD *pPartialRecord, VBVABUFFER *pVBVA, VBVACMDHDR *pHdr, uint32_t cbCmd)
290{
291 uint8_t *au8RingBuffer = &pVBVA->au8Data[0];
292
293 if ( (uint8_t *)pHdr >= au8RingBuffer
294 && (uint8_t *)pHdr < &au8RingBuffer[pVBVA->cbData])
295 {
296 /* The pointer is inside ring buffer. Must be continuous chunk. */
297 Assert (pVBVA->cbData - ((uint8_t *)pHdr - au8RingBuffer) >= cbCmd);
298
299 /* Do nothing. */
300
301 Assert (!pPartialRecord->pu8 && pPartialRecord->cb == 0);
302 }
303 else
304 {
305 /* The pointer is outside. It is then an allocated copy. */
306 LOGVBVABUFFER(("Free heap %p\n", pHdr));
307
308 if ((uint8_t *)pHdr == pPartialRecord->pu8)
309 {
310 pPartialRecord->pu8 = NULL;
311 pPartialRecord->cb = 0;
312 }
313 else
314 {
315 Assert (!pPartialRecord->pu8 && pPartialRecord->cb == 0);
316 }
317
318 RTMemFree (pHdr);
319 }
320
321 return;
322}
323
324static int vbvaFlushProcess (unsigned uScreenId, PVGASTATE pVGAState, VBVAPARTIALRECORD *pPartialRecord, VBVABUFFER *pVBVA)
325{
326 LOGVBVABUFFER(("uScreenId %d, indexRecordFirst = %d, indexRecordFree = %d, off32Data = %d, off32Free = %d\n",
327 uScreenId, pVBVA->indexRecordFirst, pVBVA->indexRecordFree, pVBVA->off32Data, pVBVA->off32Free));
328 struct {
329 /* The rectangle that includes all dirty rectangles. */
330 int32_t xLeft;
331 int32_t xRight;
332 int32_t yTop;
333 int32_t yBottom;
334 } dirtyRect;
335 RT_ZERO(dirtyRect);
336
337 bool fUpdate = false; /* Whether there were any updates. */
338 bool fDirtyEmpty = true;
339
340 for (;;)
341 {
342 VBVACMDHDR *phdr = NULL;
343 uint32_t cbCmd = ~0;
344
345 /* Fetch the command data. */
346 if (!vbvaFetchCmd (pPartialRecord, pVBVA, &phdr, &cbCmd))
347 {
348 LogFunc(("unable to fetch command. off32Data = %d, off32Free = %d!!!\n",
349 pVBVA->off32Data, pVBVA->off32Free));
350
351 /* @todo old code disabled VBVA processing here. */
352 return VERR_NOT_SUPPORTED;
353 }
354
355 if (cbCmd == uint32_t(~0))
356 {
357 /* No more commands yet in the queue. */
358 break;
359 }
360
361 if (cbCmd != 0)
362 {
363 if (!fUpdate)
364 {
365 pVGAState->pDrv->pfnVBVAUpdateBegin (pVGAState->pDrv, uScreenId);
366 fUpdate = true;
367 }
368
369 /* Updates the rectangle and sends the command to the VRDP server. */
370 pVGAState->pDrv->pfnVBVAUpdateProcess (pVGAState->pDrv, uScreenId, phdr, cbCmd);
371
372 int32_t xRight = phdr->x + phdr->w;
373 int32_t yBottom = phdr->y + phdr->h;
374
375 /* These are global coords, relative to the primary screen. */
376
377 LOGVBVABUFFER(("cbCmd = %d, x=%d, y=%d, w=%d, h=%d\n",
378 cbCmd, phdr->x, phdr->y, phdr->w, phdr->h));
379
380 /* Collect all rects into one. */
381 if (fDirtyEmpty)
382 {
383 /* This is the first rectangle to be added. */
384 dirtyRect.xLeft = phdr->x;
385 dirtyRect.yTop = phdr->y;
386 dirtyRect.xRight = xRight;
387 dirtyRect.yBottom = yBottom;
388 fDirtyEmpty = false;
389 }
390 else
391 {
392 /* Adjust region coordinates. */
393 if (dirtyRect.xLeft > phdr->x)
394 {
395 dirtyRect.xLeft = phdr->x;
396 }
397
398 if (dirtyRect.yTop > phdr->y)
399 {
400 dirtyRect.yTop = phdr->y;
401 }
402
403 if (dirtyRect.xRight < xRight)
404 {
405 dirtyRect.xRight = xRight;
406 }
407
408 if (dirtyRect.yBottom < yBottom)
409 {
410 dirtyRect.yBottom = yBottom;
411 }
412 }
413 }
414
415 vbvaReleaseCmd (pPartialRecord, pVBVA, phdr, cbCmd);
416 }
417
418 if (fUpdate)
419 {
420 if (dirtyRect.xRight - dirtyRect.xLeft)
421 {
422 pVGAState->pDrv->pfnVBVAUpdateEnd (pVGAState->pDrv, uScreenId, dirtyRect.xLeft, dirtyRect.yTop,
423 dirtyRect.xRight - dirtyRect.xLeft, dirtyRect.yBottom - dirtyRect.yTop);
424 }
425 else
426 {
427 pVGAState->pDrv->pfnVBVAUpdateEnd (pVGAState->pDrv, uScreenId, 0, 0, 0, 0);
428 }
429 }
430
431 return VINF_SUCCESS;
432}
433
434static int vbvaFlush (PVGASTATE pVGAState, VBVACONTEXT *pCtx)
435{
436 unsigned uScreenId;
437
438 for (uScreenId = 0; uScreenId < pCtx->cViews; uScreenId++)
439 {
440 VBVAPARTIALRECORD *pPartialRecord = &pCtx->aViews[uScreenId].partialRecord;
441 VBVABUFFER *pVBVA = pCtx->aViews[uScreenId].pVBVA;
442
443 if (pVBVA)
444 {
445 vbvaFlushProcess (uScreenId, pVGAState, pPartialRecord, pVBVA);
446 }
447 }
448
449 /* @todo rc */
450 return VINF_SUCCESS;
451}
452
453static int vbvaResize (PVGASTATE pVGAState, VBVAVIEW *pView, const VBVAINFOSCREEN *pNewScreen)
454{
455 /* Verify pNewScreen. */
456 /* @todo */
457
458 /* Apply these changes. */
459 pView->screen = *pNewScreen;
460
461 uint8_t *pu8VRAM = pVGAState->vram_ptrR3 + pView->view.u32ViewOffset;
462
463 int rc = pVGAState->pDrv->pfnVBVAResize (pVGAState->pDrv, &pView->view, &pView->screen, pu8VRAM);
464
465 /* @todo process VINF_VGA_RESIZE_IN_PROGRESS? */
466
467 return rc;
468}
469
470static int vbvaEnable (unsigned uScreenId, PVGASTATE pVGAState, VBVACONTEXT *pCtx, VBVABUFFER *pVBVA, uint32_t u32Offset)
471{
472 /* @todo old code did a UpdateDisplayAll at this place. */
473
474 int rc;
475
476 if (pVGAState->pDrv->pfnVBVAEnable)
477 {
478 pVBVA->hostFlags.u32HostEvents = 0;
479 pVBVA->hostFlags.u32SupportedOrders = 0;
480
481 rc = pVGAState->pDrv->pfnVBVAEnable (pVGAState->pDrv, uScreenId, &pVBVA->hostFlags);
482 }
483 else
484 {
485 rc = VERR_NOT_SUPPORTED;
486 }
487
488 if (RT_SUCCESS (rc))
489 {
490 /* pVBVA->hostFlags has been set up by pfnVBVAEnable. */
491 LogFlowFunc(("u32HostEvents 0x%08X, u32SupportedOrders 0x%08X\n",
492 pVBVA->hostFlags.u32HostEvents, pVBVA->hostFlags.u32SupportedOrders));
493
494 pCtx->aViews[uScreenId].partialRecord.pu8 = NULL;
495 pCtx->aViews[uScreenId].partialRecord.cb = 0;
496
497 pCtx->aViews[uScreenId].pVBVA = pVBVA;
498 pCtx->aViews[uScreenId].u32VBVAOffset = u32Offset;
499 }
500
501 return rc;
502}
503
504static int vbvaDisable (unsigned uScreenId, PVGASTATE pVGAState, VBVACONTEXT *pCtx)
505{
506 /* Process any pending orders and empty the VBVA ring buffer. */
507 vbvaFlush (pVGAState, pCtx);
508
509 VBVAVIEW *pView = &pCtx->aViews[uScreenId];
510
511 if (pView->pVBVA)
512 {
513 pView->pVBVA->hostFlags.u32HostEvents = 0;
514 pView->pVBVA->hostFlags.u32SupportedOrders = 0;
515
516 pView->partialRecord.pu8 = NULL;
517 pView->partialRecord.cb = 0;
518
519 pView->pVBVA = NULL;
520 pView->u32VBVAOffset = HGSMIOFFSET_VOID;
521 }
522
523 pVGAState->pDrv->pfnVBVADisable (pVGAState->pDrv, uScreenId);
524 return VINF_SUCCESS;
525}
526
527bool VBVAIsEnabled(PVGASTATE pVGAState)
528{
529 PHGSMIINSTANCE pHGSMI = pVGAState->pHGSMI;
530 if (pHGSMI)
531 {
532 VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext(pHGSMI);
533 if (pCtx)
534 {
535 if (pCtx->cViews)
536 {
537 VBVAVIEW * pView = &pCtx->aViews[0];
538 if (pView->pVBVA)
539 return true;
540 }
541 }
542 }
543 return false;
544}
545
546#ifdef DEBUG_sunlover
547void dumpMouseShapeInfo(const VBVAMOUSESHAPEINFO *pMouseShapeInfo)
548{
549 LogFlow(("fSet = %d, fVisible %d, fAlpha %d, @%d,%d %dx%d (%p, %d/%d)\n",
550 pMouseShapeInfo->fSet,
551 pMouseShapeInfo->fVisible,
552 pMouseShapeInfo->fAlpha,
553 pMouseShapeInfo->u32HotX,
554 pMouseShapeInfo->u32HotY,
555 pMouseShapeInfo->u32Width,
556 pMouseShapeInfo->u32Height,
557 pMouseShapeInfo->pu8Shape,
558 pMouseShapeInfo->cbShape,
559 pMouseShapeInfo->cbAllocated
560 ));
561}
562#endif
563
564static int vbvaUpdateMousePointerShape(PVGASTATE pVGAState, VBVAMOUSESHAPEINFO *pMouseShapeInfo, bool fShape, const uint8_t *pu8Shape)
565{
566 int rc;
567 LogFlowFunc(("pVGAState %p, pMouseShapeInfo %p, fShape %d, pu8Shape %p\n",
568 pVGAState, pMouseShapeInfo, fShape, pu8Shape));
569#ifdef DEBUG_sunlover
570 dumpMouseShapeInfo(pMouseShapeInfo);
571#endif
572
573 if (fShape && pu8Shape != NULL)
574 {
575 rc = pVGAState->pDrv->pfnVBVAMousePointerShape (pVGAState->pDrv,
576 pMouseShapeInfo->fVisible,
577 pMouseShapeInfo->fAlpha,
578 pMouseShapeInfo->u32HotX,
579 pMouseShapeInfo->u32HotY,
580 pMouseShapeInfo->u32Width,
581 pMouseShapeInfo->u32Height,
582 pu8Shape);
583 }
584 else
585 {
586 rc = pVGAState->pDrv->pfnVBVAMousePointerShape (pVGAState->pDrv,
587 pMouseShapeInfo->fVisible,
588 false,
589 0, 0,
590 0, 0,
591 NULL);
592 }
593
594 return rc;
595}
596
597static int vbvaMousePointerShape (PVGASTATE pVGAState, VBVACONTEXT *pCtx, const VBVAMOUSEPOINTERSHAPE *pShape, HGSMISIZE cbShape)
598{
599 bool fVisible = (pShape->fu32Flags & VBOX_MOUSE_POINTER_VISIBLE) != 0;
600 bool fAlpha = (pShape->fu32Flags & VBOX_MOUSE_POINTER_ALPHA) != 0;
601 bool fShape = (pShape->fu32Flags & VBOX_MOUSE_POINTER_SHAPE) != 0;
602
603 HGSMISIZE cbPointerData = 0;
604
605 if (fShape)
606 {
607 cbPointerData = ((((pShape->u32Width + 7) / 8) * pShape->u32Height + 3) & ~3)
608 + pShape->u32Width * 4 * pShape->u32Height;
609 }
610
611 if (cbPointerData > cbShape - RT_OFFSETOF(VBVAMOUSEPOINTERSHAPE, au8Data))
612 {
613 Log(("vbvaMousePointerShape: calculated pointer data size is too big (%d bytes, limit %d)\n",
614 cbPointerData, cbShape - RT_OFFSETOF(VBVAMOUSEPOINTERSHAPE, au8Data)));
615 return VERR_INVALID_PARAMETER;
616 }
617
618 /* Save mouse info it will be used to restore mouse pointer after restoring saved state. */
619 pCtx->mouseShapeInfo.fSet = true;
620 pCtx->mouseShapeInfo.fVisible = fVisible;
621 pCtx->mouseShapeInfo.fAlpha = fAlpha;
622 if (fShape)
623 {
624 /* Data related to shape. */
625 pCtx->mouseShapeInfo.u32HotX = pShape->u32HotX;
626 pCtx->mouseShapeInfo.u32HotY = pShape->u32HotY;
627 pCtx->mouseShapeInfo.u32Width = pShape->u32Width;
628 pCtx->mouseShapeInfo.u32Height = pShape->u32Height;
629
630 /* Reallocate memory buffer if necessary. */
631 if (cbPointerData > pCtx->mouseShapeInfo.cbAllocated)
632 {
633 RTMemFree (pCtx->mouseShapeInfo.pu8Shape);
634 pCtx->mouseShapeInfo.pu8Shape = NULL;
635 pCtx->mouseShapeInfo.cbShape = 0;
636
637 uint8_t *pu8Shape = (uint8_t *)RTMemAlloc (cbPointerData);
638 if (pu8Shape)
639 {
640 pCtx->mouseShapeInfo.pu8Shape = pu8Shape;
641 pCtx->mouseShapeInfo.cbAllocated = cbPointerData;
642 }
643 }
644
645 /* Copy shape bitmaps. */
646 if (pCtx->mouseShapeInfo.pu8Shape)
647 {
648 memcpy (pCtx->mouseShapeInfo.pu8Shape, &pShape->au8Data[0], cbPointerData);
649 pCtx->mouseShapeInfo.cbShape = cbPointerData;
650 }
651 }
652
653 if (pVGAState->pDrv->pfnVBVAMousePointerShape == NULL)
654 {
655 return VERR_NOT_SUPPORTED;
656 }
657
658 int rc = vbvaUpdateMousePointerShape(pVGAState, &pCtx->mouseShapeInfo, fShape, &pShape->au8Data[0]);
659
660 return rc;
661}
662
663static unsigned vbvaViewFromOffset (PHGSMIINSTANCE pIns, VBVACONTEXT *pCtx, const void *pvBuffer)
664{
665 /* Check which view contains the buffer. */
666 HGSMIOFFSET offBuffer = HGSMIPointerToOffsetHost (pIns, pvBuffer);
667
668 if (offBuffer != HGSMIOFFSET_VOID)
669 {
670 unsigned uScreenId;
671
672 for (uScreenId = 0; uScreenId < pCtx->cViews; uScreenId++)
673 {
674 VBVAINFOVIEW *pView = &pCtx->aViews[uScreenId].view;
675
676 if ( pView->u32ViewSize > 0
677 && pView->u32ViewOffset <= offBuffer
678 && offBuffer <= pView->u32ViewOffset + pView->u32ViewSize - 1)
679 {
680 return pView->u32ViewIndex;
681 }
682 }
683 }
684
685 return ~0U;
686}
687
688#ifdef DEBUG_sunlover
689static void dumpctx(const VBVACONTEXT *pCtx)
690{
691 Log(("VBVACONTEXT dump: cViews %d\n", pCtx->cViews));
692
693 uint32_t iView;
694 for (iView = 0; iView < pCtx->cViews; iView++)
695 {
696 const VBVAVIEW *pView = &pCtx->aViews[iView];
697
698 Log((" view %d o 0x%x s 0x%x m 0x%x\n",
699 pView->view.u32ViewIndex,
700 pView->view.u32ViewOffset,
701 pView->view.u32ViewSize,
702 pView->view.u32MaxScreenSize));
703
704 Log((" screen %d @%d,%d s 0x%x l 0x%x %dx%d bpp %d f 0x%x\n",
705 pView->screen.u32ViewIndex,
706 pView->screen.i32OriginX,
707 pView->screen.i32OriginY,
708 pView->screen.u32StartOffset,
709 pView->screen.u32LineSize,
710 pView->screen.u32Width,
711 pView->screen.u32Height,
712 pView->screen.u16BitsPerPixel,
713 pView->screen.u16Flags));
714
715 Log((" VBVA o 0x%x p %p\n",
716 pView->u32VBVAOffset,
717 pView->pVBVA));
718
719 Log((" PR cb 0x%x p %p\n",
720 pView->partialRecord.cb,
721 pView->partialRecord.pu8));
722 }
723
724 dumpMouseShapeInfo(&pCtx->mouseShapeInfo);
725}
726#endif /* DEBUG_sunlover */
727
728int vboxVBVASaveStateExec (PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
729{
730 PVGASTATE pVGAState = PDMINS_2_DATA(pDevIns, PVGASTATE);
731 PHGSMIINSTANCE pIns = pVGAState->pHGSMI;
732
733 int rc = HGSMIHostSaveStateExec (pIns, pSSM);
734 if (RT_SUCCESS(rc))
735 {
736 /* Save VBVACONTEXT. */
737 VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext (pIns);
738
739 if (!pCtx)
740 {
741 AssertFailed();
742
743 /* Still write a valid value to the SSM. */
744 rc = SSMR3PutU32 (pSSM, 0);
745 AssertRCReturn(rc, rc);
746 }
747 else
748 {
749#ifdef DEBUG_sunlover
750 dumpctx(pCtx);
751#endif
752
753 rc = SSMR3PutU32 (pSSM, pCtx->cViews);
754 AssertRCReturn(rc, rc);
755
756 uint32_t iView;
757 for (iView = 0; iView < pCtx->cViews; iView++)
758 {
759 VBVAVIEW *pView = &pCtx->aViews[iView];
760
761 rc = SSMR3PutU32 (pSSM, pView->view.u32ViewIndex);
762 AssertRCReturn(rc, rc);
763 rc = SSMR3PutU32 (pSSM, pView->view.u32ViewOffset);
764 AssertRCReturn(rc, rc);
765 rc = SSMR3PutU32 (pSSM, pView->view.u32ViewSize);
766 AssertRCReturn(rc, rc);
767 rc = SSMR3PutU32 (pSSM, pView->view.u32MaxScreenSize);
768 AssertRCReturn(rc, rc);
769
770 rc = SSMR3PutU32 (pSSM, pView->screen.u32ViewIndex);
771 AssertRCReturn(rc, rc);
772 rc = SSMR3PutS32 (pSSM, pView->screen.i32OriginX);
773 AssertRCReturn(rc, rc);
774 rc = SSMR3PutS32 (pSSM, pView->screen.i32OriginY);
775 AssertRCReturn(rc, rc);
776 rc = SSMR3PutU32 (pSSM, pView->screen.u32StartOffset);
777 AssertRCReturn(rc, rc);
778 rc = SSMR3PutU32 (pSSM, pView->screen.u32LineSize);
779 AssertRCReturn(rc, rc);
780 rc = SSMR3PutU32 (pSSM, pView->screen.u32Width);
781 AssertRCReturn(rc, rc);
782 rc = SSMR3PutU32 (pSSM, pView->screen.u32Height);
783 AssertRCReturn(rc, rc);
784 rc = SSMR3PutU16 (pSSM, pView->screen.u16BitsPerPixel);
785 AssertRCReturn(rc, rc);
786 rc = SSMR3PutU16 (pSSM, pView->screen.u16Flags);
787 AssertRCReturn(rc, rc);
788
789 rc = SSMR3PutU32 (pSSM, pView->pVBVA? pView->u32VBVAOffset: HGSMIOFFSET_VOID);
790 AssertRCReturn(rc, rc);
791
792 rc = SSMR3PutU32 (pSSM, pView->partialRecord.cb);
793 AssertRCReturn(rc, rc);
794
795 if (pView->partialRecord.cb > 0)
796 {
797 rc = SSMR3PutMem (pSSM, pView->partialRecord.pu8, pView->partialRecord.cb);
798 AssertRCReturn(rc, rc);
799 }
800 }
801
802 /* Save mouse pointer shape information. */
803 rc = SSMR3PutBool (pSSM, pCtx->mouseShapeInfo.fSet);
804 AssertRCReturn(rc, rc);
805 rc = SSMR3PutBool (pSSM, pCtx->mouseShapeInfo.fVisible);
806 AssertRCReturn(rc, rc);
807 rc = SSMR3PutBool (pSSM, pCtx->mouseShapeInfo.fAlpha);
808 AssertRCReturn(rc, rc);
809 rc = SSMR3PutU32 (pSSM, pCtx->mouseShapeInfo.u32HotX);
810 AssertRCReturn(rc, rc);
811 rc = SSMR3PutU32 (pSSM, pCtx->mouseShapeInfo.u32HotY);
812 AssertRCReturn(rc, rc);
813 rc = SSMR3PutU32 (pSSM, pCtx->mouseShapeInfo.u32Width);
814 AssertRCReturn(rc, rc);
815 rc = SSMR3PutU32 (pSSM, pCtx->mouseShapeInfo.u32Height);
816 AssertRCReturn(rc, rc);
817 rc = SSMR3PutU32 (pSSM, pCtx->mouseShapeInfo.cbShape);
818 AssertRCReturn(rc, rc);
819 if (pCtx->mouseShapeInfo.cbShape)
820 {
821 rc = SSMR3PutMem (pSSM, pCtx->mouseShapeInfo.pu8Shape, pCtx->mouseShapeInfo.cbShape);
822 AssertRCReturn(rc, rc);
823 }
824
825 /* Size of some additional data. For future extensions. */
826 rc = SSMR3PutU32 (pSSM, 0);
827 AssertRCReturn(rc, rc);
828 }
829 }
830
831 return rc;
832}
833
834int vboxVBVALoadStateExec (PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t u32Version)
835{
836 if (u32Version < VGA_SAVEDSTATE_VERSION_HGSMI)
837 {
838 /* Nothing was saved. */
839 return VINF_SUCCESS;
840 }
841
842 PVGASTATE pVGAState = PDMINS_2_DATA(pDevIns, PVGASTATE);
843 PHGSMIINSTANCE pIns = pVGAState->pHGSMI;
844 int rc = HGSMIHostLoadStateExec (pIns, pSSM, u32Version);
845 if (RT_SUCCESS(rc))
846 {
847 /* Load VBVACONTEXT. */
848 VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext (pIns);
849
850 if (!pCtx)
851 {
852 /* This should not happen. */
853 AssertFailed();
854 rc = VERR_INVALID_PARAMETER;
855 }
856 else
857 {
858 uint32_t cViews = 0;
859 rc = SSMR3GetU32 (pSSM, &cViews);
860 AssertRCReturn(rc, rc);
861
862 uint32_t iView;
863 for (iView = 0; iView < cViews; iView++)
864 {
865 VBVAVIEW *pView = &pCtx->aViews[iView];
866
867 rc = SSMR3GetU32 (pSSM, &pView->view.u32ViewIndex);
868 AssertRCReturn(rc, rc);
869 rc = SSMR3GetU32 (pSSM, &pView->view.u32ViewOffset);
870 AssertRCReturn(rc, rc);
871 rc = SSMR3GetU32 (pSSM, &pView->view.u32ViewSize);
872 AssertRCReturn(rc, rc);
873 rc = SSMR3GetU32 (pSSM, &pView->view.u32MaxScreenSize);
874 AssertRCReturn(rc, rc);
875
876 rc = SSMR3GetU32 (pSSM, &pView->screen.u32ViewIndex);
877 AssertRCReturn(rc, rc);
878 rc = SSMR3GetS32 (pSSM, &pView->screen.i32OriginX);
879 AssertRCReturn(rc, rc);
880 rc = SSMR3GetS32 (pSSM, &pView->screen.i32OriginY);
881 AssertRCReturn(rc, rc);
882 rc = SSMR3GetU32 (pSSM, &pView->screen.u32StartOffset);
883 AssertRCReturn(rc, rc);
884 rc = SSMR3GetU32 (pSSM, &pView->screen.u32LineSize);
885 AssertRCReturn(rc, rc);
886 rc = SSMR3GetU32 (pSSM, &pView->screen.u32Width);
887 AssertRCReturn(rc, rc);
888 rc = SSMR3GetU32 (pSSM, &pView->screen.u32Height);
889 AssertRCReturn(rc, rc);
890 rc = SSMR3GetU16 (pSSM, &pView->screen.u16BitsPerPixel);
891 AssertRCReturn(rc, rc);
892 rc = SSMR3GetU16 (pSSM, &pView->screen.u16Flags);
893 AssertRCReturn(rc, rc);
894
895 rc = SSMR3GetU32 (pSSM, &pView->u32VBVAOffset);
896 AssertRCReturn(rc, rc);
897
898 rc = SSMR3GetU32 (pSSM, &pView->partialRecord.cb);
899 AssertRCReturn(rc, rc);
900
901 if (pView->partialRecord.cb == 0)
902 {
903 pView->partialRecord.pu8 = NULL;
904 }
905 else
906 {
907 Assert(pView->partialRecord.pu8 == NULL); /* Should be it. */
908
909 uint8_t *pu8 = (uint8_t *)RTMemAlloc (pView->partialRecord.cb);
910
911 if (!pu8)
912 {
913 return VERR_NO_MEMORY;
914 }
915
916 pView->partialRecord.pu8 = pu8;
917
918 rc = SSMR3GetMem (pSSM, pView->partialRecord.pu8, pView->partialRecord.cb);
919 AssertRCReturn(rc, rc);
920 }
921
922 if ( pView->u32VBVAOffset == HGSMIOFFSET_VOID
923 || pView->screen.u32LineSize == 0) /* Earlier broken saved states. */
924 {
925 pView->pVBVA = NULL;
926 }
927 else
928 {
929 pView->pVBVA = (VBVABUFFER *)HGSMIOffsetToPointerHost (pIns, pView->u32VBVAOffset);
930 }
931 }
932
933 if (u32Version > VGA_SAVEDSTATE_VERSION_WITH_CONFIG)
934 {
935 /* Read mouse pointer shape information. */
936 rc = SSMR3GetBool (pSSM, &pCtx->mouseShapeInfo.fSet);
937 AssertRCReturn(rc, rc);
938 rc = SSMR3GetBool (pSSM, &pCtx->mouseShapeInfo.fVisible);
939 AssertRCReturn(rc, rc);
940 rc = SSMR3GetBool (pSSM, &pCtx->mouseShapeInfo.fAlpha);
941 AssertRCReturn(rc, rc);
942 rc = SSMR3GetU32 (pSSM, &pCtx->mouseShapeInfo.u32HotX);
943 AssertRCReturn(rc, rc);
944 rc = SSMR3GetU32 (pSSM, &pCtx->mouseShapeInfo.u32HotY);
945 AssertRCReturn(rc, rc);
946 rc = SSMR3GetU32 (pSSM, &pCtx->mouseShapeInfo.u32Width);
947 AssertRCReturn(rc, rc);
948 rc = SSMR3GetU32 (pSSM, &pCtx->mouseShapeInfo.u32Height);
949 AssertRCReturn(rc, rc);
950 rc = SSMR3GetU32 (pSSM, &pCtx->mouseShapeInfo.cbShape);
951 AssertRCReturn(rc, rc);
952 if (pCtx->mouseShapeInfo.cbShape)
953 {
954 pCtx->mouseShapeInfo.pu8Shape = (uint8_t *)RTMemAlloc(pCtx->mouseShapeInfo.cbShape);
955 if (pCtx->mouseShapeInfo.pu8Shape == NULL)
956 {
957 return VERR_NO_MEMORY;
958 }
959 pCtx->mouseShapeInfo.cbAllocated = pCtx->mouseShapeInfo.cbShape;
960 rc = SSMR3GetMem (pSSM, pCtx->mouseShapeInfo.pu8Shape, pCtx->mouseShapeInfo.cbShape);
961 AssertRCReturn(rc, rc);
962 }
963 else
964 {
965 pCtx->mouseShapeInfo.pu8Shape = NULL;
966 }
967
968 /* Size of some additional data. For future extensions. */
969 uint32_t cbExtra = 0;
970 rc = SSMR3GetU32 (pSSM, &cbExtra);
971 AssertRCReturn(rc, rc);
972 if (cbExtra > 0)
973 {
974 rc = SSMR3Skip(pSSM, cbExtra);
975 AssertRCReturn(rc, rc);
976 }
977 }
978
979 pCtx->cViews = iView;
980 LogFlowFunc(("%d views loaded\n", pCtx->cViews));
981
982#ifdef DEBUG_sunlover
983 dumpctx(pCtx);
984#endif
985 }
986 }
987
988 return rc;
989}
990
991int vboxVBVALoadStateDone (PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
992{
993 PVGASTATE pVGAState = PDMINS_2_DATA(pDevIns, PVGASTATE);
994 VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext (pVGAState->pHGSMI);
995
996 if (pCtx)
997 {
998 uint32_t iView;
999 for (iView = 0; iView < pCtx->cViews; iView++)
1000 {
1001 VBVAVIEW *pView = &pCtx->aViews[iView];
1002
1003 if (pView->pVBVA)
1004 {
1005 vbvaEnable (iView, pVGAState, pCtx, pView->pVBVA, pView->u32VBVAOffset);
1006 vbvaResize (pVGAState, pView, &pView->screen);
1007 }
1008 }
1009
1010 if (pCtx->mouseShapeInfo.fSet)
1011 {
1012 vbvaUpdateMousePointerShape(pVGAState, &pCtx->mouseShapeInfo, true, pCtx->mouseShapeInfo.pu8Shape);
1013 }
1014 }
1015
1016 return VINF_SUCCESS;
1017}
1018
1019#ifdef VBOX_WITH_VIDEOHWACCEL
1020static void vbvaVHWAHHCommandReinit(VBOXVHWACMD* pHdr, VBOXVHWACMD_TYPE enmCmd, int32_t iDisplay)
1021{
1022 memset(pHdr, 0, VBOXVHWACMD_HEADSIZE());
1023 pHdr->cRefs = 1;
1024 pHdr->iDisplay = iDisplay;
1025 pHdr->rc = VERR_NOT_IMPLEMENTED;
1026 pHdr->enmCmd = enmCmd;
1027 pHdr->Flags = VBOXVHWACMD_FLAG_HH_CMD;
1028}
1029
1030static VBOXVHWACMD* vbvaVHWAHHCommandCreate (PVGASTATE pVGAState, VBOXVHWACMD_TYPE enmCmd, int32_t iDisplay, VBOXVHWACMD_LENGTH cbCmd)
1031{
1032 VBOXVHWACMD* pHdr = (VBOXVHWACMD*)RTMemAlloc(cbCmd + VBOXVHWACMD_HEADSIZE());
1033 Assert(pHdr);
1034 if (pHdr)
1035 vbvaVHWAHHCommandReinit(pHdr, enmCmd, iDisplay);
1036
1037 return pHdr;
1038}
1039
1040DECLINLINE(void) vbvaVHWAHHCommandRelease (VBOXVHWACMD* pCmd)
1041{
1042 uint32_t cRefs = ASMAtomicDecU32(&pCmd->cRefs);
1043 if(!cRefs)
1044 {
1045 RTMemFree(pCmd);
1046 }
1047}
1048
1049DECLINLINE(void) vbvaVHWAHHCommandRetain (VBOXVHWACMD* pCmd)
1050{
1051 ASMAtomicIncU32(&pCmd->cRefs);
1052}
1053
1054static unsigned vbvaVHWAHandleCommand (PVGASTATE pVGAState, VBVACONTEXT *pCtx, PVBOXVHWACMD pCmd)
1055{
1056 if (pVGAState->pDrv->pfnVHWACommandProcess)
1057 pVGAState->pDrv->pfnVHWACommandProcess(pVGAState->pDrv, pCmd);
1058#ifdef DEBUG_misha
1059 else
1060 AssertFailed();
1061#endif
1062 return 0;
1063}
1064
1065static DECLCALLBACK(void) vbvaVHWAHHCommandSetEventCallback(void * pContext)
1066{
1067 RTSemEventSignal((RTSEMEVENT)pContext);
1068}
1069
1070static int vbvaVHWAHHCommandPost(PVGASTATE pVGAState, VBOXVHWACMD* pCmd)
1071{
1072 RTSEMEVENT hComplEvent;
1073 int rc = RTSemEventCreate(&hComplEvent);
1074 AssertRC(rc);
1075 if(RT_SUCCESS(rc))
1076 {
1077 /* ensure the cmd is not deleted until we process it */
1078 vbvaVHWAHHCommandRetain (pCmd);
1079 VBOXVHWA_HH_CALLBACK_SET(pCmd, vbvaVHWAHHCommandSetEventCallback, (void*)hComplEvent);
1080 vbvaVHWAHandleCommand(pVGAState, NULL, pCmd);
1081 if((ASMAtomicReadU32((volatile uint32_t *)&pCmd->Flags) & VBOXVHWACMD_FLAG_HG_ASYNCH) != 0)
1082 {
1083 rc = RTSemEventWaitNoResume(hComplEvent, RT_INDEFINITE_WAIT);
1084 }
1085 else
1086 {
1087 /* the command is completed */
1088 }
1089
1090 AssertRC(rc);
1091 if(RT_SUCCESS(rc))
1092 {
1093 RTSemEventDestroy(hComplEvent);
1094 }
1095 vbvaVHWAHHCommandRelease(pCmd);
1096 }
1097 return rc;
1098}
1099
1100int vbvaVHWAConstruct (PVGASTATE pVGAState)
1101{
1102 VBOXVHWACMD *pCmd = vbvaVHWAHHCommandCreate(pVGAState, VBOXVHWACMD_TYPE_HH_CONSTRUCT, 0, sizeof(VBOXVHWACMD_HH_CONSTRUCT));
1103 Assert(pCmd);
1104 if(pCmd)
1105 {
1106 uint32_t iDisplay = 0;
1107 int rc = VINF_SUCCESS;
1108 VBOXVHWACMD_HH_CONSTRUCT * pBody = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_HH_CONSTRUCT);
1109
1110 do
1111 {
1112 memset(pBody, 0, sizeof(VBOXVHWACMD_HH_CONSTRUCT));
1113
1114 PPDMDEVINS pDevIns = pVGAState->pDevInsR3;
1115 PVM pVM = PDMDevHlpGetVM(pDevIns);
1116
1117 pBody->pVM = pVM;
1118 pBody->pvVRAM = pVGAState->vram_ptrR3;
1119 pBody->cbVRAM = pVGAState->vram_size;
1120
1121 rc = vbvaVHWAHHCommandPost(pVGAState, pCmd);
1122 AssertRC(rc);
1123 if(RT_SUCCESS(rc))
1124 {
1125 rc = pCmd->rc;
1126 AssertMsg(RT_SUCCESS(rc) || rc == VERR_NOT_IMPLEMENTED, ("%Rrc\n", rc));
1127 if(rc == VERR_NOT_IMPLEMENTED)
1128 {
1129 /* @todo: set some flag in pVGAState indicating VHWA is not supported */
1130 /* VERR_NOT_IMPLEMENTED is not a failure, we just do not support it */
1131 rc = VINF_SUCCESS;
1132 }
1133
1134 if (!RT_SUCCESS(rc))
1135 break;
1136 }
1137 else
1138 break;
1139
1140 ++iDisplay;
1141 if (iDisplay >= pVGAState->cMonitors)
1142 break;
1143 vbvaVHWAHHCommandReinit(pCmd, VBOXVHWACMD_TYPE_HH_CONSTRUCT, (int32_t)iDisplay);
1144 } while (true);
1145
1146 vbvaVHWAHHCommandRelease(pCmd);
1147
1148 return rc;
1149 }
1150 return VERR_OUT_OF_RESOURCES;
1151}
1152
1153int vbvaVHWAReset (PVGASTATE pVGAState)
1154{
1155 /* ensure we have all pending cmds processed and h->g cmds disabled */
1156 VBOXVHWACMD *pCmd = vbvaVHWAHHCommandCreate(pVGAState, VBOXVHWACMD_TYPE_HH_RESET, 0, 0);
1157 Assert(pCmd);
1158 if(pCmd)
1159 {
1160 int rc = VINF_SUCCESS;
1161 uint32_t iDisplay = 0;
1162
1163 do
1164 {
1165 rc =vbvaVHWAHHCommandPost(pVGAState, pCmd);
1166 AssertRC(rc);
1167 if(RT_SUCCESS(rc))
1168 {
1169 rc = pCmd->rc;
1170 AssertMsg(RT_SUCCESS(rc) || rc == VERR_NOT_IMPLEMENTED, ("%Rrc\n", rc));
1171 if (rc == VERR_NOT_IMPLEMENTED)
1172 rc = VINF_SUCCESS;
1173 }
1174
1175 if (!RT_SUCCESS(rc))
1176 break;
1177
1178 ++iDisplay;
1179 if (iDisplay >= pVGAState->cMonitors)
1180 break;
1181 vbvaVHWAHHCommandReinit(pCmd, VBOXVHWACMD_TYPE_HH_RESET, (int32_t)iDisplay);
1182
1183 } while (true);
1184
1185 vbvaVHWAHHCommandRelease(pCmd);
1186
1187 return rc;
1188 }
1189 return VERR_OUT_OF_RESOURCES;
1190}
1191
1192/* @todo call this also on reset? */
1193int vbvaVHWADisable (PVGASTATE pVGAState)
1194{
1195 VBOXVHWACMD *pCmd = vbvaVHWAHHCommandCreate(pVGAState, VBOXVHWACMD_TYPE_DISABLE, 0, 0);
1196 Assert(pCmd);
1197 if(pCmd)
1198 {
1199 int rc = VINF_SUCCESS;
1200 uint32_t iDisplay = 0;
1201
1202 do
1203 {
1204 rc = vbvaVHWAHHCommandPost(pVGAState, pCmd);
1205 AssertRC(rc);
1206 if(RT_SUCCESS(rc))
1207 {
1208 rc = pCmd->rc;
1209 AssertMsg(RT_SUCCESS(rc) || rc == VERR_NOT_IMPLEMENTED, ("%Rrc\n", rc));
1210 if(rc == VERR_NOT_IMPLEMENTED)
1211 {
1212 rc = VINF_SUCCESS;
1213 }
1214 }
1215
1216 if (!RT_SUCCESS(rc))
1217 break;
1218
1219 ++iDisplay;
1220 if (iDisplay >= pVGAState->cMonitors)
1221 break;
1222 vbvaVHWAHHCommandReinit(pCmd, VBOXVHWACMD_TYPE_DISABLE, (int32_t)iDisplay);
1223
1224 } while (true);
1225
1226 vbvaVHWAHHCommandRelease(pCmd);
1227
1228 return rc;
1229 }
1230 return VERR_OUT_OF_RESOURCES;
1231}
1232
1233int vboxVBVASaveStatePrep (PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1234{
1235 /* ensure we have no pending commands */
1236 return vbvaVHWADisable(PDMINS_2_DATA(pDevIns, PVGASTATE));
1237}
1238
1239#define PPDMIDISPLAYVBVACALLBACKS_2_PVGASTATE(_pcb) ( (PVGASTATE)((uint8_t *)(_pcb) - RT_OFFSETOF(VGASTATE, IVBVACallbacks)) )
1240
1241int vbvaVHWACommandCompleteAsynch(PPDMIDISPLAYVBVACALLBACKS pInterface, PVBOXVHWACMD pCmd)
1242{
1243 int rc;
1244 if((pCmd->Flags & VBOXVHWACMD_FLAG_HH_CMD) == 0)
1245 {
1246 PVGASTATE pVGAState = PPDMIDISPLAYVBVACALLBACKS_2_PVGASTATE(pInterface);
1247 PHGSMIINSTANCE pIns = pVGAState->pHGSMI;
1248
1249 Assert(pCmd->Flags & VBOXVHWACMD_FLAG_HG_ASYNCH);
1250#ifdef VBOX_WITH_WDDM
1251 if (pVGAState->fGuestCaps & VBVACAPS_COMPLETEGCMD_BY_IOREAD)
1252 {
1253 rc = HGSMICompleteGuestCommand(pIns, pCmd, !!(pCmd->Flags & VBOXVHWACMD_FLAG_GH_ASYNCH_IRQ));
1254 AssertRC(rc);
1255 }
1256 else
1257#endif
1258 {
1259 VBVAHOSTCMD *pHostCmd;
1260 int32_t iDisplay = pCmd->iDisplay;
1261
1262 if(pCmd->Flags & VBOXVHWACMD_FLAG_GH_ASYNCH_EVENT)
1263 {
1264 rc = HGSMIHostCommandAlloc (pIns,
1265 (void**)&pHostCmd,
1266 VBVAHOSTCMD_SIZE(sizeof(VBVAHOSTCMDEVENT)),
1267 HGSMI_CH_VBVA,
1268 VBVAHG_EVENT);
1269 AssertRC(rc);
1270 if(RT_SUCCESS(rc))
1271 {
1272 memset(pHostCmd, 0 , VBVAHOSTCMD_SIZE(sizeof(VBVAHOSTCMDEVENT)));
1273 pHostCmd->iDstID = pCmd->iDisplay;
1274 pHostCmd->customOpCode = 0;
1275 VBVAHOSTCMDEVENT *pBody = VBVAHOSTCMD_BODY(pHostCmd, VBVAHOSTCMDEVENT);
1276 pBody->pEvent = pCmd->GuestVBVAReserved1;
1277 }
1278 }
1279 else
1280 {
1281 HGSMIOFFSET offCmd = HGSMIPointerToOffsetHost (pIns, pCmd);
1282 Assert(offCmd != HGSMIOFFSET_VOID);
1283 if(offCmd != HGSMIOFFSET_VOID)
1284 {
1285 rc = HGSMIHostCommandAlloc (pIns,
1286 (void**)&pHostCmd,
1287 VBVAHOSTCMD_SIZE(sizeof(VBVAHOSTCMDVHWACMDCOMPLETE)),
1288 HGSMI_CH_VBVA,
1289 VBVAHG_DISPLAY_CUSTOM);
1290 AssertRC(rc);
1291 if(RT_SUCCESS(rc))
1292 {
1293 memset(pHostCmd, 0 , VBVAHOSTCMD_SIZE(sizeof(VBVAHOSTCMDVHWACMDCOMPLETE)));
1294 pHostCmd->iDstID = pCmd->iDisplay;
1295 pHostCmd->customOpCode = VBVAHG_DCUSTOM_VHWA_CMDCOMPLETE;
1296 VBVAHOSTCMDVHWACMDCOMPLETE *pBody = VBVAHOSTCMD_BODY(pHostCmd, VBVAHOSTCMDVHWACMDCOMPLETE);
1297 pBody->offCmd = offCmd;
1298 }
1299 }
1300 else
1301 {
1302 rc = VERR_INVALID_PARAMETER;
1303 }
1304 }
1305
1306 if(RT_SUCCESS(rc))
1307 {
1308 rc = HGSMIHostCommandProcessAndFreeAsynch(pIns, pHostCmd, (pCmd->Flags & VBOXVHWACMD_FLAG_GH_ASYNCH_IRQ) != 0);
1309 AssertRC(rc);
1310 if(RT_SUCCESS(rc))
1311 {
1312 return rc;
1313 }
1314 HGSMIHostCommandFree (pIns, pHostCmd);
1315 }
1316 }
1317 }
1318 else
1319 {
1320 PFNVBOXVHWA_HH_CALLBACK pfn = VBOXVHWA_HH_CALLBACK_GET(pCmd);
1321 if(pfn)
1322 {
1323 pfn(VBOXVHWA_HH_CALLBACK_GET_ARG(pCmd));
1324 }
1325 rc = VINF_SUCCESS;
1326 }
1327 return rc;
1328}
1329#endif
1330
1331
1332/*
1333 *
1334 * New VBVA uses a new interface id: #define VBE_DISPI_ID_VBOX_VIDEO 0xBE01
1335 *
1336 * VBVA uses two 32 bits IO ports to write VRAM offsets of shared memory blocks for commands.
1337 * Read Write
1338 * Host port 0x3b0 to process completed
1339 * Guest port 0x3d0 control value? to process
1340 *
1341 */
1342
1343static DECLCALLBACK(void) vbvaNotifyGuest (void *pvCallback)
1344{
1345#if defined(VBOX_WITH_HGSMI) && (defined(VBOX_WITH_VIDEOHWACCEL) || defined(VBOX_WITH_VDMA) || defined(VBOX_WITH_WDDM))
1346 PVGASTATE pVGAState = (PVGASTATE)pvCallback;
1347 PPDMDEVINS pDevIns = pVGAState->pDevInsR3;
1348 PDMCritSectEnter(&pVGAState->lock, VERR_SEM_BUSY);
1349 HGSMISetHostGuestFlags(pVGAState->pHGSMI, HGSMIHOSTFLAGS_IRQ);
1350 PDMDevHlpPCISetIrq(pDevIns, 0, PDM_IRQ_LEVEL_HIGH);
1351 PDMCritSectLeave(&pVGAState->lock);
1352#else
1353 NOREF(pvCallback);
1354 /* Do nothing. Later the VMMDev/VGA IRQ can be used for the notification. */
1355#endif
1356}
1357
1358/* The guest submitted a buffer. @todo Verify all guest data. */
1359static DECLCALLBACK(int) vbvaChannelHandler (void *pvHandler, uint16_t u16ChannelInfo, void *pvBuffer, HGSMISIZE cbBuffer)
1360{
1361 int rc = VINF_SUCCESS;
1362
1363 LogFlowFunc(("pvHandler %p, u16ChannelInfo %d, pvBuffer %p, cbBuffer %u\n",
1364 pvHandler, u16ChannelInfo, pvBuffer, cbBuffer));
1365
1366 PVGASTATE pVGAState = (PVGASTATE)pvHandler;
1367 PHGSMIINSTANCE pIns = pVGAState->pHGSMI;
1368 VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext (pIns);
1369
1370 switch (u16ChannelInfo)
1371 {
1372#ifdef VBOX_WITH_VDMA
1373 case VBVA_VDMA_CMD:
1374 {
1375 PVBOXVDMACBUF_DR pCmd = (PVBOXVDMACBUF_DR)VBoxSHGSMIBufferData ((PVBOXSHGSMIHEADER)pvBuffer);
1376 vboxVDMACommand(pVGAState->pVdma, pCmd);
1377 rc = VINF_SUCCESS;
1378 break;
1379 }
1380 case VBVA_VDMA_CTL:
1381 {
1382 PVBOXVDMA_CTL pCmd = (PVBOXVDMA_CTL)VBoxSHGSMIBufferData ((PVBOXSHGSMIHEADER)pvBuffer);
1383 vboxVDMAControl(pVGAState->pVdma, pCmd);
1384 rc = VINF_SUCCESS;
1385 break;
1386 }
1387#endif
1388 case VBVA_QUERY_CONF32:
1389 {
1390 if (cbBuffer < sizeof (VBVACONF32))
1391 {
1392 rc = VERR_INVALID_PARAMETER;
1393 break;
1394 }
1395
1396 VBVACONF32 *pConf32 = (VBVACONF32 *)pvBuffer;
1397 LogFlowFunc(("VBVA_QUERY_CONF32: u32Index %d, u32Value 0x%x\n",
1398 pConf32->u32Index, pConf32->u32Value));
1399
1400 if (pConf32->u32Index == VBOX_VBVA_CONF32_MONITOR_COUNT)
1401 {
1402 pConf32->u32Value = pCtx->cViews;
1403 }
1404 else if (pConf32->u32Index == VBOX_VBVA_CONF32_HOST_HEAP_SIZE)
1405 {
1406 /* @todo a value caclucated from the vram size */
1407 pConf32->u32Value = 64*_1K;
1408 }
1409 else
1410 {
1411 Log(("Unsupported VBVA_QUERY_CONF32 index %d!!!\n",
1412 pConf32->u32Index));
1413 rc = VERR_INVALID_PARAMETER;
1414 }
1415 } break;
1416
1417 case VBVA_SET_CONF32:
1418 {
1419 if (cbBuffer < sizeof (VBVACONF32))
1420 {
1421 rc = VERR_INVALID_PARAMETER;
1422 break;
1423 }
1424
1425 VBVACONF32 *pConf32 = (VBVACONF32 *)pvBuffer;
1426 LogFlowFunc(("VBVA_SET_CONF32: u32Index %d, u32Value 0x%x\n",
1427 pConf32->u32Index, pConf32->u32Value));
1428
1429 if (pConf32->u32Index == VBOX_VBVA_CONF32_MONITOR_COUNT)
1430 {
1431 /* do nothing. this is a const. */
1432 }
1433 else if (pConf32->u32Index == VBOX_VBVA_CONF32_HOST_HEAP_SIZE)
1434 {
1435 /* do nothing. this is a const. */
1436 }
1437 else
1438 {
1439 Log(("Unsupported VBVA_SET_CONF32 index %d!!!\n",
1440 pConf32->u32Index));
1441 rc = VERR_INVALID_PARAMETER;
1442 }
1443 } break;
1444
1445 case VBVA_INFO_VIEW:
1446 {
1447 if (cbBuffer < sizeof (VBVAINFOVIEW))
1448 {
1449 rc = VERR_INVALID_PARAMETER;
1450 break;
1451 }
1452
1453 /* Guest submits an array of VBVAINFOVIEW structures. */
1454 VBVAINFOVIEW *pView = (VBVAINFOVIEW *)pvBuffer;
1455
1456 for (;
1457 cbBuffer >= sizeof (VBVAINFOVIEW);
1458 pView++, cbBuffer -= sizeof (VBVAINFOVIEW))
1459 {
1460 LogFlowFunc(("VBVA_INFO_VIEW: index %d, offset 0x%x, size 0x%x, max screen size 0x%x\n",
1461 pView->u32ViewIndex, pView->u32ViewOffset, pView->u32ViewSize, pView->u32MaxScreenSize));
1462
1463 /* @todo verify view data. */
1464 if (pView->u32ViewIndex >= pCtx->cViews)
1465 {
1466 Log(("View index too large %d!!!\n",
1467 pView->u32ViewIndex));
1468 rc = VERR_INVALID_PARAMETER;
1469 break;
1470 }
1471
1472 pCtx->aViews[pView->u32ViewIndex].view = *pView;
1473 }
1474 } break;
1475
1476 case VBVA_INFO_HEAP:
1477 {
1478 if (cbBuffer < sizeof (VBVAINFOHEAP))
1479 {
1480 rc = VERR_INVALID_PARAMETER;
1481 break;
1482 }
1483
1484 VBVAINFOHEAP *pHeap = (VBVAINFOHEAP *)pvBuffer;
1485 LogFlowFunc(("VBVA_INFO_HEAP: offset 0x%x, size 0x%x\n",
1486 pHeap->u32HeapOffset, pHeap->u32HeapSize));
1487
1488 rc = HGSMISetupHostHeap (pIns, pHeap->u32HeapOffset, pHeap->u32HeapSize);
1489 } break;
1490
1491 case VBVA_FLUSH:
1492 {
1493 if (cbBuffer < sizeof (VBVAFLUSH))
1494 {
1495 rc = VERR_INVALID_PARAMETER;
1496 break;
1497 }
1498
1499 VBVAFLUSH *pFlush = (VBVAFLUSH *)pvBuffer;
1500 LogFlowFunc(("VBVA_FLUSH: u32Reserved 0x%x\n",
1501 pFlush->u32Reserved));
1502
1503 rc = vbvaFlush (pVGAState, pCtx);
1504 } break;
1505
1506 case VBVA_INFO_SCREEN:
1507 {
1508 if (cbBuffer < sizeof (VBVAINFOSCREEN))
1509 {
1510 rc = VERR_INVALID_PARAMETER;
1511 break;
1512 }
1513
1514 VBVAINFOSCREEN *pScreen = (VBVAINFOSCREEN *)pvBuffer;
1515 LogFlowFunc(("VBVA_INFO_SCREEN: [%d] @%d,%d %dx%d, line 0x%x, BPP %d, flags 0x%x\n",
1516 pScreen->u32ViewIndex, pScreen->i32OriginX, pScreen->i32OriginY,
1517 pScreen->u32Width, pScreen->u32Height,
1518 pScreen->u32LineSize, pScreen->u16BitsPerPixel, pScreen->u16Flags));
1519
1520 if (pScreen->u32ViewIndex < RT_ELEMENTS (pCtx->aViews))
1521 {
1522 vbvaResize (pVGAState, &pCtx->aViews[pScreen->u32ViewIndex], pScreen);
1523 }
1524 else
1525 {
1526 Log(("View index too large %d!!!\n",
1527 pScreen->u32ViewIndex));
1528 rc = VERR_INVALID_PARAMETER;
1529 }
1530 } break;
1531
1532 case VBVA_ENABLE:
1533 {
1534 if (cbBuffer < sizeof (VBVAENABLE))
1535 {
1536 rc = VERR_INVALID_PARAMETER;
1537 break;
1538 }
1539
1540 VBVAENABLE *pEnable = (VBVAENABLE *)pvBuffer;
1541 unsigned uScreenId;
1542#ifdef VBOXWDDM_WITH_VBVA
1543 if (pEnable->u32Flags & VBVA_F_EXTENDED)
1544 {
1545 if (cbBuffer < sizeof (VBVAENABLE_EX))
1546 {
1547 rc = VERR_INVALID_PARAMETER;
1548 break;
1549 }
1550
1551 VBVAENABLE_EX *pEnableEx = (VBVAENABLE_EX *)pvBuffer;
1552 uScreenId = pEnableEx->u32ScreenId;
1553 }
1554 else
1555#endif
1556 {
1557 uScreenId = vbvaViewFromOffset (pIns, pCtx, pvBuffer);
1558 }
1559
1560 if (uScreenId == ~0U)
1561 {
1562 rc = VERR_INVALID_PARAMETER;
1563 break;
1564 }
1565
1566 LogFlowFunc(("VBVA_ENABLE[%d]: u32Flags 0x%x u32Offset 0x%x\n",
1567 uScreenId, pEnable->u32Flags, pEnable->u32Offset));
1568
1569 if ((pEnable->u32Flags & (VBVA_F_ENABLE | VBVA_F_DISABLE)) == VBVA_F_ENABLE)
1570 {
1571 /* Guest reported offset relative to view. */
1572 uint32_t u32Offset = pEnable->u32Offset;
1573#ifdef VBOXWDDM_WITH_VBVA
1574 if (!(pEnable->u32Flags & VBVA_F_ABSOFFSET))
1575#endif
1576 {
1577 u32Offset += pCtx->aViews[uScreenId].view.u32ViewOffset;
1578 }
1579
1580 VBVABUFFER *pVBVA = (VBVABUFFER *)HGSMIOffsetToPointerHost (pIns, u32Offset);
1581
1582 if (pVBVA)
1583 {
1584 /* Process any pending orders and empty the VBVA ring buffer. */
1585 vbvaFlush (pVGAState, pCtx);
1586
1587 rc = vbvaEnable (uScreenId, pVGAState, pCtx, pVBVA, u32Offset);
1588 }
1589 else
1590 {
1591 Log(("Invalid VBVABUFFER offset 0x%x!!!\n",
1592 pEnable->u32Offset));
1593 rc = VERR_INVALID_PARAMETER;
1594 }
1595 }
1596 else if ((pEnable->u32Flags & (VBVA_F_ENABLE | VBVA_F_DISABLE)) == VBVA_F_DISABLE)
1597 {
1598 rc = vbvaDisable (uScreenId, pVGAState, pCtx);
1599 }
1600 else
1601 {
1602 Log(("Invalid VBVA_ENABLE flags 0x%x!!!\n",
1603 pEnable->u32Flags));
1604 rc = VERR_INVALID_PARAMETER;
1605 }
1606
1607 pEnable->i32Result = rc;
1608 } break;
1609
1610 case VBVA_MOUSE_POINTER_SHAPE:
1611 {
1612 if (cbBuffer < sizeof (VBVAMOUSEPOINTERSHAPE))
1613 {
1614 rc = VERR_INVALID_PARAMETER;
1615 break;
1616 }
1617
1618 VBVAMOUSEPOINTERSHAPE *pShape = (VBVAMOUSEPOINTERSHAPE *)pvBuffer;
1619
1620 LogFlowFunc(("VBVA_MOUSE_POINTER_SHAPE: i32Result 0x%x, fu32Flags 0x%x, hot spot %d,%d, size %dx%d\n",
1621 pShape->i32Result,
1622 pShape->fu32Flags,
1623 pShape->u32HotX,
1624 pShape->u32HotY,
1625 pShape->u32Width,
1626 pShape->u32Height));
1627
1628 rc = vbvaMousePointerShape (pVGAState, pCtx, pShape, cbBuffer);
1629
1630 pShape->i32Result = rc;
1631 } break;
1632
1633
1634#ifdef VBOX_WITH_VIDEOHWACCEL
1635 case VBVA_VHWA_CMD:
1636 {
1637 rc = vbvaVHWAHandleCommand (pVGAState, pCtx, (PVBOXVHWACMD)pvBuffer);
1638 } break;
1639#endif
1640
1641#ifdef VBOX_WITH_WDDM
1642 case VBVA_INFO_CAPS:
1643 {
1644 if (cbBuffer < sizeof (VBVACAPS))
1645 {
1646 rc = VERR_INVALID_PARAMETER;
1647 break;
1648 }
1649
1650 VBVACAPS *pCaps = (VBVACAPS*)pvBuffer;
1651 pVGAState->fGuestCaps = pCaps->fCaps;
1652 pCaps->rc = VINF_SUCCESS;
1653 } break;
1654#endif
1655 default:
1656 Log(("Unsupported VBVA guest command %d!!!\n",
1657 u16ChannelInfo));
1658 break;
1659 }
1660
1661 return rc;
1662}
1663
1664void VBVAReset (PVGASTATE pVGAState)
1665{
1666 if (!pVGAState || !pVGAState->pHGSMI)
1667 {
1668 return;
1669 }
1670
1671 VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext (pVGAState->pHGSMI);
1672
1673#ifdef VBOX_WITH_VIDEOHWACCEL
1674 vbvaVHWAReset (pVGAState);
1675#endif
1676
1677 uint32_t HgFlags = HGSMIReset (pVGAState->pHGSMI);
1678 if(HgFlags & HGSMIHOSTFLAGS_IRQ)
1679 {
1680 /* this means the IRQ is LEVEL_HIGH, need to reset it */
1681 PDMDevHlpPCISetIrq(pVGAState->pDevInsR3, 0, PDM_IRQ_LEVEL_LOW);
1682 }
1683
1684 if (pCtx)
1685 {
1686 vbvaFlush (pVGAState, pCtx);
1687
1688 unsigned uScreenId;
1689
1690 for (uScreenId = 0; uScreenId < pCtx->cViews; uScreenId++)
1691 {
1692 vbvaDisable (uScreenId, pVGAState, pCtx);
1693 }
1694
1695 pCtx->mouseShapeInfo.fSet = false;
1696 RTMemFree(pCtx->mouseShapeInfo.pu8Shape);
1697 pCtx->mouseShapeInfo.pu8Shape = NULL;
1698 pCtx->mouseShapeInfo.cbAllocated = 0;
1699 pCtx->mouseShapeInfo.cbShape = 0;
1700 }
1701
1702}
1703
1704int VBVAUpdateDisplay (PVGASTATE pVGAState)
1705{
1706 int rc = VERR_NOT_SUPPORTED; /* Assuming that the VGA device will have to do updates. */
1707
1708 VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext (pVGAState->pHGSMI);
1709
1710 if (pCtx)
1711 {
1712 rc = vbvaFlush (pVGAState, pCtx);
1713
1714 if (RT_SUCCESS (rc))
1715 {
1716 if (!pCtx->aViews[0].pVBVA)
1717 {
1718 /* VBVA is not enabled for the first view, so VGA device must do updates. */
1719 rc = VERR_NOT_SUPPORTED;
1720 }
1721 }
1722 }
1723
1724 return rc;
1725}
1726
1727static HGSMICHANNELHANDLER sOldChannelHandler;
1728
1729int VBVAInit (PVGASTATE pVGAState)
1730{
1731 PPDMDEVINS pDevIns = pVGAState->pDevInsR3;
1732
1733 PVM pVM = PDMDevHlpGetVM(pDevIns);
1734
1735 int rc = HGSMICreate (&pVGAState->pHGSMI,
1736 pVM,
1737 "VBVA",
1738 0,
1739 pVGAState->vram_ptrR3,
1740 pVGAState->vram_size,
1741 vbvaNotifyGuest,
1742 pVGAState,
1743 sizeof (VBVACONTEXT));
1744
1745 if (RT_SUCCESS (rc))
1746 {
1747 rc = HGSMIHostChannelRegister (pVGAState->pHGSMI,
1748 HGSMI_CH_VBVA,
1749 vbvaChannelHandler,
1750 pVGAState,
1751 &sOldChannelHandler);
1752 if (RT_SUCCESS (rc))
1753 {
1754 VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext (pVGAState->pHGSMI);
1755 pCtx->cViews = pVGAState->cMonitors;
1756 }
1757 }
1758
1759 return rc;
1760
1761}
1762
1763void VBVADestroy (PVGASTATE pVGAState)
1764{
1765 VBVACONTEXT *pCtx = (VBVACONTEXT *)HGSMIContext (pVGAState->pHGSMI);
1766
1767 if (pCtx)
1768 {
1769 pCtx->mouseShapeInfo.fSet = false;
1770 RTMemFree(pCtx->mouseShapeInfo.pu8Shape);
1771 pCtx->mouseShapeInfo.pu8Shape = NULL;
1772 pCtx->mouseShapeInfo.cbAllocated = 0;
1773 pCtx->mouseShapeInfo.cbShape = 0;
1774 }
1775
1776 HGSMIDestroy (pVGAState->pHGSMI);
1777 pVGAState->pHGSMI = NULL;
1778}
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