VirtualBox

source: vbox/trunk/src/VBox/GuestHost/OpenGL/util/vboxhgcm.c@ 34571

Last change on this file since 34571 was 34571, checked in by vboxsync, 14 years ago

crOpenGL: fix compiz for high resolution guests
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File size: 73.0 KB
Line 
1/* $Id: vboxhgcm.c 34571 2010-12-01 13:45:57Z vboxsync $ */
2
3/** @file
4 * VBox HGCM connection
5 */
6
7/*
8 * Copyright (C) 2008 Oracle Corporation
9 *
10 * This file is part of VirtualBox Open Source Edition (OSE), as
11 * available from http://www.virtualbox.org. This file is free software;
12 * you can redistribute it and/or modify it under the terms of the GNU
13 * General Public License (GPL) as published by the Free Software
14 * Foundation, in version 2 as it comes in the "COPYING" file of the
15 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17 */
18#ifdef RT_OS_WINDOWS
19 #include <windows.h>
20 #include <ddraw.h>
21#else
22 #include <sys/ioctl.h>
23 #include <errno.h>
24 #include <fcntl.h>
25 #include <string.h>
26 #include <unistd.h>
27#endif
28
29#include "cr_error.h"
30#include "cr_net.h"
31#include "cr_bufpool.h"
32#include "cr_mem.h"
33#include "cr_string.h"
34#include "cr_endian.h"
35#include "cr_threads.h"
36#include "net_internals.h"
37#include "cr_process.h"
38
39#include <iprt/thread.h>
40
41#if 1 /** @todo Try use the Vbgl interface instead of talking directly to the driver? */
42# include <VBox/VBoxGuest.h>
43#else
44# include <VBox/VBoxGuestLib.h>
45#endif
46#include <VBox/HostServices/VBoxCrOpenGLSvc.h>
47
48#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
49#include <VBox/VBoxCrHgsmi.h>
50#endif
51
52/*@todo move define somewhere else, and make sure it's less than VBGLR0_MAX_HGCM_KERNEL_PARM*/
53/*If we fail to pass data in one chunk, send it in chunks of this size instead*/
54#define CR_HGCM_SPLIT_BUFFER_SIZE (8*_1M)
55
56#ifndef MIN
57# define MIN(a, b) ((a) < (b) ? (a) : (b))
58#endif
59
60#ifdef DEBUG_misha
61#ifdef CRASSERT
62# undef CRASSERT
63#endif
64#define CRASSERT Assert
65#endif
66//#define IN_GUEST
67//#if defined(IN_GUEST)
68//#define VBOX_WITH_CRHGSMIPROFILE
69//#endif
70#ifdef VBOX_WITH_CRHGSMIPROFILE
71#include <iprt/time.h>
72#include <stdio.h>
73
74typedef struct VBOXCRHGSMIPROFILE
75{
76 uint64_t cStartTime;
77 uint64_t cStepsTime;
78 uint64_t cSteps;
79} VBOXCRHGSMIPROFILE, *PVBOXCRHGSMIPROFILE;
80
81#define VBOXCRHGSMIPROFILE_GET_TIME_NANO() RTTimeNanoTS()
82#define VBOXCRHGSMIPROFILE_GET_TIME_MILLI() RTTimeMilliTS()
83
84/* 10 sec */
85#define VBOXCRHGSMIPROFILE_LOG_STEP_TIME (10000000000.)
86
87DECLINLINE(void) vboxCrHgsmiProfileStart(PVBOXCRHGSMIPROFILE pProfile)
88{
89 pProfile->cStepsTime = 0;
90 pProfile->cSteps = 0;
91 pProfile->cStartTime = VBOXCRHGSMIPROFILE_GET_TIME_NANO();
92}
93
94DECLINLINE(void) vboxCrHgsmiProfileStep(PVBOXCRHGSMIPROFILE pProfile, uint64_t cStepTime)
95{
96 pProfile->cStepsTime += cStepTime;
97 ++pProfile->cSteps;
98}
99
100typedef struct VBOXCRHGSMIPROFILE_SCOPE
101{
102 uint64_t cStartTime;
103// bool bDisable;
104} VBOXCRHGSMIPROFILE_SCOPE, *PVBOXCRHGSMIPROFILE_SCOPE;
105
106static VBOXCRHGSMIPROFILE g_VBoxProfile;
107
108static void vboxCrHgsmiLog(char * szString, ...)
109{
110 char szBuffer[4096] = {0};
111 va_list pArgList;
112 va_start(pArgList, szString);
113 _vsnprintf(szBuffer, sizeof(szBuffer) / sizeof(szBuffer[0]), szString, pArgList);
114 va_end(pArgList);
115
116#ifdef VBOX_WITH_CRHGSMI
117 VBoxCrHgsmiLog(szBuffer);
118#else
119 OutputDebugString(szBuffer);
120#endif
121}
122
123DECLINLINE(void) vboxCrHgsmiProfileLog(PVBOXCRHGSMIPROFILE pProfile, uint64_t cTime)
124{
125 uint64_t profileTime = cTime - pProfile->cStartTime;
126 double percent = ((double)100.0) * pProfile->cStepsTime / profileTime;
127 double cps = ((double)1000000000.) * pProfile->cSteps / profileTime;
128 vboxCrHgsmiLog("hgcm: cps: %.1f, host %.1f%%\n", cps, percent);
129}
130
131DECLINLINE(void) vboxCrHgsmiProfileScopeEnter(PVBOXCRHGSMIPROFILE_SCOPE pScope)
132{
133// pScope->bDisable = false;
134 pScope->cStartTime = VBOXCRHGSMIPROFILE_GET_TIME_NANO();
135}
136
137DECLINLINE(void) vboxCrHgsmiProfileScopeExit(PVBOXCRHGSMIPROFILE_SCOPE pScope)
138{
139// if (!pScope->bDisable)
140 {
141 uint64_t cTime = VBOXCRHGSMIPROFILE_GET_TIME_NANO();
142 vboxCrHgsmiProfileStep(&g_VBoxProfile, cTime - pScope->cStartTime);
143 if (VBOXCRHGSMIPROFILE_LOG_STEP_TIME < cTime - g_VBoxProfile.cStartTime)
144 {
145 vboxCrHgsmiProfileLog(&g_VBoxProfile, cTime);
146 vboxCrHgsmiProfileStart(&g_VBoxProfile);
147 }
148 }
149}
150
151
152#define VBOXCRHGSMIPROFILE_INIT() vboxCrHgsmiProfileStart(&g_VBoxProfile)
153#define VBOXCRHGSMIPROFILE_TERM() do {} while (0)
154
155#define VBOXCRHGSMIPROFILE_FUNC_PROLOGUE() \
156 VBOXCRHGSMIPROFILE_SCOPE __vboxCrHgsmiProfileScope; \
157 vboxCrHgsmiProfileScopeEnter(&__vboxCrHgsmiProfileScope);
158
159#define VBOXCRHGSMIPROFILE_FUNC_EPILOGUE() \
160 vboxCrHgsmiProfileScopeExit(&__vboxCrHgsmiProfileScope); \
161
162
163#else
164#define VBOXCRHGSMIPROFILE_INIT() do {} while (0)
165#define VBOXCRHGSMIPROFILE_TERM() do {} while (0)
166#define VBOXCRHGSMIPROFILE_FUNC_PROLOGUE() do {} while (0)
167#define VBOXCRHGSMIPROFILE_FUNC_EPILOGUE() do {} while (0)
168#endif
169
170typedef struct {
171 int initialized;
172 int num_conns;
173 CRConnection **conns;
174 CRBufferPool *bufpool;
175#ifdef CHROMIUM_THREADSAFE
176 CRmutex mutex;
177 CRmutex recvmutex;
178#endif
179 CRNetReceiveFuncList *recv_list;
180 CRNetCloseFuncList *close_list;
181#ifdef RT_OS_WINDOWS
182 HANDLE hGuestDrv;
183 LPDIRECTDRAW pDirectDraw;
184#else
185 int iGuestDrv;
186#endif
187#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
188 bool bHgsmiOn;
189#endif
190} CRVBOXHGCMDATA;
191
192static CRVBOXHGCMDATA g_crvboxhgcm = {0,};
193
194typedef enum {
195 CR_VBOXHGCM_USERALLOCATED,
196 CR_VBOXHGCM_MEMORY,
197 CR_VBOXHGCM_MEMORY_BIG
198#ifdef RT_OS_WINDOWS
199 ,CR_VBOXHGCM_DDRAW_SURFACE
200#endif
201#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
202 ,CR_VBOXHGCM_UHGSMI_BUFFER
203#endif
204} CRVBOXHGCMBUFFERKIND;
205
206#define CR_VBOXHGCM_BUFFER_MAGIC 0xABCDE321
207
208typedef struct CRVBOXHGCMBUFFER {
209 uint32_t magic;
210 CRVBOXHGCMBUFFERKIND kind;
211 union
212 {
213 struct
214 {
215 uint32_t len;
216 uint32_t allocated;
217 };
218
219#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
220 PVBOXUHGSMI_BUFFER pBuffer;
221#endif
222 };
223#ifdef RT_OS_WINDOWS
224 LPDIRECTDRAWSURFACE pDDS;
225#endif
226} CRVBOXHGCMBUFFER;
227
228#ifndef RT_OS_WINDOWS
229 #define TRUE true
230 #define FALSE false
231 #define INVALID_HANDLE_VALUE (-1)
232#endif
233
234
235#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
236
237/* add sizeof header + page align */
238#define CRVBOXHGSMI_PAGE_ALIGN(_s) (((_s) + 0xfff) & ~0xfff)
239#define CRVBOXHGSMI_BUF_HDR_SIZE() (sizeof (CRVBOXHGCMBUFFER))
240#define CRVBOXHGSMI_BUF_SIZE(_s) CRVBOXHGSMI_PAGE_ALIGN((_s) + CRVBOXHGSMI_BUF_HDR_SIZE())
241#define CRVBOXHGSMI_BUF_LOCK_SIZE(_s) ((_s) + CRVBOXHGSMI_BUF_HDR_SIZE())
242#define CRVBOXHGSMI_BUF_DATA(_p) ((void*)(((CRVBOXHGCMBUFFER*)(_p)) + 1))
243#define CRVBOXHGSMI_BUF_HDR(_p) (((CRVBOXHGCMBUFFER*)(_p)) - 1)
244#define CRVBOXHGSMI_BUF_OFFSET(_st2, _st1) ((uint32_t)(((uint8_t*)(_st2)) - ((uint8_t*)(_st1))))
245
246static int _crVBoxHGSMIClientInit(PCRVBOXHGSMI_CLIENT pClient, PVBOXUHGSMI pHgsmi)
247{
248 int rc;
249 pClient->pHgsmi = pHgsmi;
250 rc = pHgsmi->pfnBufferCreate(pHgsmi, CRVBOXHGSMI_PAGE_ALIGN(1),
251 VBOXUHGSMI_SYNCHOBJECT_TYPE_EVENT,
252 NULL,
253 &pClient->pCmdBuffer);
254 AssertRC(rc);
255 if (RT_SUCCESS(rc))
256 {
257 rc = pHgsmi->pfnBufferCreate(pHgsmi, CRVBOXHGSMI_PAGE_ALIGN(1),
258 VBOXUHGSMI_SYNCHOBJECT_TYPE_EVENT,
259 NULL,
260 &pClient->pHGBuffer);
261 AssertRC(rc);
262 if (RT_SUCCESS(rc))
263 {
264 pClient->pvHGBuffer = NULL;
265 pClient->bufpool = crBufferPoolInit(16);
266 return VINF_SUCCESS;
267 }
268 pClient->pCmdBuffer->pfnDestroy(pClient->pCmdBuffer);
269 }
270 pClient->pHgsmi = NULL;
271 return rc;
272}
273
274void _crVBoxHGSMIBufferFree(void *data)
275{
276 PVBOXUHGSMI_BUFFER pBuffer = (PVBOXUHGSMI_BUFFER)data;
277 pBuffer->pfnDestroy(pBuffer);
278}
279
280static int _crVBoxHGSMIClientTerm(PCRVBOXHGSMI_CLIENT pClient, PVBOXUHGSMI *ppHgsmi)
281{
282 if (pClient->bufpool)
283 crBufferPoolCallbackFree(pClient->bufpool, _crVBoxHGSMIBufferFree);
284 pClient->bufpool = NULL;
285
286 if (pClient->pHGBuffer)
287 {
288 pClient->pHGBuffer->pfnDestroy(pClient->pHGBuffer);
289 pClient->pHGBuffer = NULL;
290 }
291
292 if (pClient->pCmdBuffer)
293 {
294 pClient->pCmdBuffer->pfnDestroy(pClient->pCmdBuffer);
295 pClient->pCmdBuffer = NULL;
296 }
297
298 if (ppHgsmi)
299 {
300 *ppHgsmi = pClient->pHgsmi;
301 }
302 pClient->pHgsmi = NULL;
303
304 return VINF_SUCCESS;
305}
306
307
308#ifdef VBOX_CRHGSMI_WITH_D3DDEV
309
310DECLCALLBACK(HVBOXCRHGSMI_CLIENT) _crVBoxHGSMIClientCreate(PVBOXUHGSMI pHgsmi)
311{
312 PCRVBOXHGSMI_CLIENT pClient = crAlloc(sizeof (CRVBOXHGSMI_CLIENT));
313
314 if (pClient)
315 {
316 int rc = _crVBoxHGSMIClientInit(pClient, pHgsmi);
317 AssertRC(rc);
318 if (RT_SUCCESS(rc))
319 return (HVBOXCRHGSMI_CLIENT)pClient;
320
321 crFree(pCLient);
322 }
323
324 return NULL;
325}
326
327DECLCALLBACK(void) _crVBoxHGSMIClientDestroy(HVBOXCRHGSMI_CLIENT hClient)
328{
329 PCRVBOXHGSMI_CLIENT pClient = (PCRVBOXHGSMI_CLIENT)hClient;
330 _crVBoxHGSMIClientTerm(pClient, NULL);
331 crFree(pClient);
332}
333#endif
334
335DECLINLINE(PCRVBOXHGSMI_CLIENT) _crVBoxHGSMIClientGet(CRConnection *conn)
336{
337#ifdef VBOX_CRHGSMI_WITH_D3DDEV
338 PCRVBOXHGSMI_CLIENT pClient = (PCRVBOXHGSMI_CLIENT)VBoxCrHgsmiQueryClient();
339 Assert(pClient);
340 return pClient;
341#else
342 if (conn->HgsmiClient.pHgsmi)
343 return &conn->HgsmiClient;
344 {
345 PVBOXUHGSMI pHgsmi = VBoxCrHgsmiCreate();
346 Assert(pHgsmi);
347 if (pHgsmi)
348 {
349 int rc = _crVBoxHGSMIClientInit(&conn->HgsmiClient, pHgsmi);
350 AssertRC(rc);
351 if (RT_SUCCESS(rc))
352 {
353 Assert(conn->HgsmiClient.pHgsmi);
354 return &conn->HgsmiClient;
355 }
356 VBoxCrHgsmiDestroy(pHgsmi);
357 }
358 }
359 return NULL;
360#endif
361}
362
363static PVBOXUHGSMI_BUFFER _crVBoxHGSMIBufAlloc(PCRVBOXHGSMI_CLIENT pClient, uint32_t cbSize)
364{
365 PVBOXUHGSMI_BUFFER buf;
366 int rc;
367
368 buf = (PVBOXUHGSMI_BUFFER ) crBufferPoolPop(pClient->bufpool, cbSize);
369
370 if (!buf)
371 {
372 crDebug("Buffer pool %p was empty; allocating new %d byte buffer.",
373 (void *) pClient->bufpool,
374 cbSize);
375 rc = pClient->pHgsmi->pfnBufferCreate(pClient->pHgsmi, cbSize,
376 VBOXUHGSMI_SYNCHOBJECT_TYPE_NONE, NULL,
377 &buf);
378 AssertRC(rc);
379 if (RT_FAILURE(rc))
380 crWarning("Failed to Create a buffer of size(%d), rc(%d)\n", cbSize, rc);
381 }
382 return buf;
383}
384
385static PVBOXUHGSMI_BUFFER _crVBoxHGSMIBufFromHdr(CRVBOXHGCMBUFFER *pHdr)
386{
387 PVBOXUHGSMI_BUFFER pBuf;
388 int rc;
389 CRASSERT(pHdr->magic == CR_VBOXHGCM_BUFFER_MAGIC);
390 CRASSERT(pHdr->kind == CR_VBOXHGCM_UHGSMI_BUFFER);
391 pBuf = pHdr->pBuffer;
392 rc = pBuf->pfnUnlock(pBuf);
393 AssertRC(rc);
394 if (RT_FAILURE(rc))
395 {
396 return NULL;
397 }
398 return pBuf;
399}
400
401static void _crVBoxHGSMIBufFree(PCRVBOXHGSMI_CLIENT pClient, PVBOXUHGSMI_BUFFER pBuf)
402{
403 crBufferPoolPush(pClient->bufpool, pBuf, pBuf->cbBuffer);
404}
405
406static CRVBOXHGSMIHDR *_crVBoxHGSMICmdBufferLock(PCRVBOXHGSMI_CLIENT pClient, uint32_t cbBuffer)
407{
408 /* in theory it is OK to use one cmd buffer for asynch cmd submission
409 * because bDiscard flag should result in allocating a new memory backend if the
410 * allocation is still in use.
411 * However, NOTE: since one and the same semaphore synch event is used for completion notification,
412 * for the notification mechanism working as expected
413 * 1. host must complete commands in the same order as it receives them
414 * (to avoid situation when guest receives notification for another command completion)
415 * 2. guest must eventually wait for command completion unless he specified bDoNotSignalCompletion
416 * 3. guest must wait for command completion in the same order as it submits them
417 * in case we can not satisfy any of the above, we should introduce multiple command buffers */
418 CRVBOXHGSMIHDR * pHdr;
419 VBOXUHGSMI_BUFFER_LOCK_FLAGS fFlags;
420 int rc;
421 fFlags.Value = 0;
422 fFlags.bDiscard = 1;
423 rc = pClient->pCmdBuffer->pfnLock(pClient->pCmdBuffer, 0, cbBuffer, fFlags, (void**)&pHdr);
424 AssertRC(rc);
425 if (RT_SUCCESS(rc))
426 return pHdr;
427
428 crWarning("Failed to Lock the command buffer of size(%d), rc(%d)\n", cbBuffer, rc);
429 return NULL;
430}
431
432static CRVBOXHGSMIHDR *_crVBoxHGSMICmdBufferLockRo(PCRVBOXHGSMI_CLIENT pClient, uint32_t cbBuffer)
433{
434 /* in theory it is OK to use one cmd buffer for asynch cmd submission
435 * because bDiscard flag should result in allocating a new memory backend if the
436 * allocation is still in use.
437 * However, NOTE: since one and the same semaphore synch event is used for completion notification,
438 * for the notification mechanism working as expected
439 * 1. host must complete commands in the same order as it receives them
440 * (to avoid situation when guest receives notification for another command completion)
441 * 2. guest must eventually wait for command completion unless he specified bDoNotSignalCompletion
442 * 3. guest must wait for command completion in the same order as it submits them
443 * in case we can not satisfy any of the above, we should introduce multiple command buffers */
444 CRVBOXHGSMIHDR * pHdr;
445 VBOXUHGSMI_BUFFER_LOCK_FLAGS fFlags;
446 int rc;
447 fFlags.Value = 0;
448 fFlags.bReadOnly = 1;
449 rc = pClient->pCmdBuffer->pfnLock(pClient->pCmdBuffer, 0, cbBuffer, fFlags, (void**)&pHdr);
450 AssertRC(rc);
451 if (RT_FAILURE(rc))
452 crWarning("Failed to Lock the command buffer of size(%d), rc(%d)\n", cbBuffer, rc);
453 return pHdr;
454}
455
456static void _crVBoxHGSMICmdBufferUnlock(PCRVBOXHGSMI_CLIENT pClient)
457{
458 int rc = pClient->pCmdBuffer->pfnUnlock(pClient->pCmdBuffer);
459 AssertRC(rc);
460 if (RT_FAILURE(rc))
461 crWarning("Failed to Unlock the command buffer rc(%d)\n", rc);
462}
463
464static int32_t _crVBoxHGSMICmdBufferGetRc(PCRVBOXHGSMI_CLIENT pClient)
465{
466 CRVBOXHGSMIHDR * pHdr;
467 VBOXUHGSMI_BUFFER_LOCK_FLAGS fFlags;
468 int rc;
469
470 fFlags.Value = 0;
471 fFlags.bReadOnly = 1;
472 rc = pClient->pCmdBuffer->pfnLock(pClient->pCmdBuffer, 0, sizeof (*pHdr), fFlags, (void**)&pHdr);
473 AssertRC(rc);
474 if (RT_FAILURE(rc))
475 {
476 crWarning("Failed to Lock the command buffer of size(%d), rc(%d)\n", sizeof (*pHdr), rc);
477 return rc;
478 }
479
480 rc = pHdr->result;
481 AssertRC(rc);
482 pClient->pCmdBuffer->pfnUnlock(pClient->pCmdBuffer);
483
484 return rc;
485}
486
487DECLINLINE(PVBOXUHGSMI_BUFFER) _crVBoxHGSMIRecvBufGet(PCRVBOXHGSMI_CLIENT pClient)
488{
489 if (pClient->pvHGBuffer)
490 {
491 int rc = pClient->pHGBuffer->pfnUnlock(pClient->pHGBuffer);
492 if (RT_FAILURE(rc))
493 {
494 return NULL;
495 }
496 pClient->pvHGBuffer = NULL;
497 }
498 return pClient->pHGBuffer;
499}
500
501DECLINLINE(void*) _crVBoxHGSMIRecvBufData(PCRVBOXHGSMI_CLIENT pClient, uint32_t cbBuffer)
502{
503 VBOXUHGSMI_BUFFER_LOCK_FLAGS fFlags;
504 int rc;
505 Assert(!pClient->pvHGBuffer);
506 fFlags.Value = 0;
507 rc = pClient->pHGBuffer->pfnLock(pClient->pHGBuffer, 0, cbBuffer, fFlags, &pClient->pvHGBuffer);
508 AssertRC(rc);
509 if (RT_SUCCESS(rc))
510 {
511 return pClient->pvHGBuffer;
512 }
513 return NULL;
514}
515
516DECLINLINE(void) _crVBoxHGSMIFillCmd(VBOXUHGSMI_BUFFER_SUBMIT *pSubm, PCRVBOXHGSMI_CLIENT pClient, uint32_t cbData)
517{
518 pSubm->pBuf = pClient->pCmdBuffer;
519 pSubm->offData = 0;
520 pSubm->cbData = cbData;
521 pSubm->fFlags.Value = 0;
522 pSubm->fFlags.bDoNotRetire = 1;
523// pSubm->fFlags.bDoNotSignalCompletion = 1; /* <- we do not need that actually since
524// * in case we want completion,
525// * we will block in _crVBoxHGSMICmdBufferGetRc (when locking the buffer)
526// * which is needed for getting the result */
527}
528
529#ifdef RT_OS_WINDOWS
530#define CRVBOXHGSMI_BUF_WAIT(_pBub) WaitForSingleObject((_pBub)->hSynch, INFINITE);
531#else
532# error "Port Me!!"
533#endif
534
535DECLINLINE(void) _crVBoxHGSMIWaitCmd(PCRVBOXHGSMI_CLIENT pClient)
536{
537 int rc = CRVBOXHGSMI_BUF_WAIT(pClient->pCmdBuffer);
538 Assert(rc == 0);
539}
540#endif
541
542/* Some forward declarations */
543static void _crVBoxHGCMReceiveMessage(CRConnection *conn);
544
545#ifndef IN_GUEST
546static bool _crVBoxHGCMReadBytes(CRConnection *conn, void *buf, uint32_t len)
547{
548 CRASSERT(conn && buf);
549
550 if (!conn->pBuffer || (conn->cbBuffer<len))
551 return FALSE;
552
553 crMemcpy(buf, conn->pBuffer, len);
554
555 conn->cbBuffer -= len;
556 conn->pBuffer = conn->cbBuffer>0 ? (uint8_t*)conn->pBuffer+len : NULL;
557
558 return TRUE;
559}
560#endif
561
562/*@todo get rid of it*/
563static bool _crVBoxHGCMWriteBytes(CRConnection *conn, const void *buf, uint32_t len)
564{
565 CRASSERT(conn && buf);
566
567 /* make sure there's host buffer and it's clear */
568 CRASSERT(conn->pHostBuffer && !conn->cbHostBuffer);
569
570 if (conn->cbHostBufferAllocated < len)
571 {
572 crDebug("Host buffer too small %d out of requested %d bytes, reallocating", conn->cbHostBufferAllocated, len);
573 crFree(conn->pHostBuffer);
574 conn->pHostBuffer = crAlloc(len);
575 if (!conn->pHostBuffer)
576 {
577 conn->cbHostBufferAllocated = 0;
578 crError("OUT_OF_MEMORY trying to allocate %d bytes", len);
579 return FALSE;
580 }
581 conn->cbHostBufferAllocated = len;
582 }
583
584 crMemcpy(conn->pHostBuffer, buf, len);
585 conn->cbHostBuffer = len;
586
587 return TRUE;
588}
589
590/**
591 * Send an HGCM request
592 *
593 * @return VBox status code
594 * @param pvData Data pointer
595 * @param cbData Data size
596 */
597/** @todo use vbglR3DoIOCtl here instead */
598static int crVBoxHGCMCall(void *pvData, unsigned cbData)
599{
600#ifdef IN_GUEST
601
602# ifdef RT_OS_WINDOWS
603 DWORD cbReturned;
604
605 if (DeviceIoControl (g_crvboxhgcm.hGuestDrv,
606 VBOXGUEST_IOCTL_HGCM_CALL(cbData),
607 pvData, cbData,
608 pvData, cbData,
609 &cbReturned,
610 NULL))
611 {
612 return VINF_SUCCESS;
613 }
614 crDebug("vboxCall failed with %x\n", GetLastError());
615 return VERR_NOT_SUPPORTED;
616# else
617 int rc;
618# if defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD)
619 VBGLBIGREQ Hdr;
620 Hdr.u32Magic = VBGLBIGREQ_MAGIC;
621 Hdr.cbData = cbData;
622 Hdr.pvDataR3 = pvData;
623# if HC_ARCH_BITS == 32
624 Hdr.u32Padding = 0;
625# endif
626 rc = ioctl(g_crvboxhgcm.iGuestDrv, VBOXGUEST_IOCTL_HGCM_CALL(cbData), &Hdr);
627# else
628 rc = ioctl(g_crvboxhgcm.iGuestDrv, VBOXGUEST_IOCTL_HGCM_CALL(cbData), pvData);
629# endif
630# ifdef RT_OS_LINUX
631 if (rc == 0)
632# else
633 if (rc >= 0)
634# endif
635 {
636 return VINF_SUCCESS;
637 }
638# ifdef RT_OS_LINUX
639 if (rc >= 0) /* positive values are negated VBox error status codes. */
640 {
641 crWarning("vboxCall failed with VBox status code %d\n", -rc);
642 if (rc==VINF_INTERRUPTED)
643 {
644 RTMSINTERVAL sl;
645 int i;
646
647 for (i=0, sl=50; i<6; i++, sl=sl*2)
648 {
649 RTThreadSleep(sl);
650 rc = ioctl(g_crvboxhgcm.iGuestDrv, VBOXGUEST_IOCTL_HGCM_CALL(cbData), pvData);
651 if (rc==0)
652 {
653 crWarning("vboxCall retry(%i) succeeded", i+1);
654 return VINF_SUCCESS;
655 }
656 else if (rc==VINF_INTERRUPTED)
657 {
658 continue;
659 }
660 else
661 {
662 crWarning("vboxCall retry(%i) failed with VBox status code %d", i+1, -rc);
663 break;
664 }
665 }
666 }
667 return -rc;
668 }
669 else
670# endif
671 crWarning("vboxCall failed with %x\n", errno);
672 return VERR_NOT_SUPPORTED;
673# endif /*#ifdef RT_OS_WINDOWS*/
674
675#else /*#ifdef IN_GUEST*/
676 crError("crVBoxHGCMCall called on host side!");
677 CRASSERT(FALSE);
678 return VERR_NOT_SUPPORTED;
679#endif
680}
681
682static void *_crVBoxHGCMAlloc(CRConnection *conn)
683{
684 CRVBOXHGCMBUFFER *buf;
685
686#ifdef CHROMIUM_THREADSAFE
687 crLockMutex(&g_crvboxhgcm.mutex);
688#endif
689
690 buf = (CRVBOXHGCMBUFFER *) crBufferPoolPop(g_crvboxhgcm.bufpool, conn->buffer_size);
691
692 if (!buf)
693 {
694 crDebug("Buffer pool %p was empty; allocating new %d byte buffer.",
695 (void *) g_crvboxhgcm.bufpool,
696 (unsigned int)sizeof(CRVBOXHGCMBUFFER) + conn->buffer_size);
697
698#if defined(IN_GUEST) && defined(RT_OS_WINDOWS)
699 /* Try to start DDRAW on guest side */
700 if (!g_crvboxhgcm.pDirectDraw && 0)
701 {
702 HRESULT hr;
703
704 hr = DirectDrawCreate(NULL, &g_crvboxhgcm.pDirectDraw, NULL);
705 if (hr != DD_OK)
706 {
707 crWarning("Failed to create DirectDraw interface (%x)\n", hr);
708 g_crvboxhgcm.pDirectDraw = NULL;
709 }
710 else
711 {
712 hr = IDirectDraw_SetCooperativeLevel(g_crvboxhgcm.pDirectDraw, NULL, DDSCL_NORMAL);
713 if (hr != DD_OK)
714 {
715 crWarning("Failed to SetCooperativeLevel (%x)\n", hr);
716 IDirectDraw_Release(g_crvboxhgcm.pDirectDraw);
717 g_crvboxhgcm.pDirectDraw = NULL;
718 }
719 crDebug("Created DirectDraw and set CooperativeLevel successfully\n");
720 }
721 }
722
723 /* Try to allocate buffer via DDRAW */
724 if (g_crvboxhgcm.pDirectDraw)
725 {
726 DDSURFACEDESC ddsd;
727 HRESULT hr;
728 LPDIRECTDRAWSURFACE lpDDS;
729
730 memset(&ddsd, 0, sizeof(ddsd));
731 ddsd.dwSize = sizeof(ddsd);
732
733 /* @todo DDSCAPS_VIDEOMEMORY ain't working for some reason
734 * also, it would be better to request dwLinearSize but it fails too
735 * ddsd.dwLinearSize = sizeof(CRVBOXHGCMBUFFER) + conn->buffer_size;
736 */
737
738 ddsd.dwFlags = DDSD_CAPS | DDSD_PIXELFORMAT | DDSD_WIDTH | DDSD_HEIGHT;
739 ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
740 /* use 1 byte per pixel format */
741 ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat);
742 ddsd.ddpfPixelFormat.dwFlags = DDPF_RGB;
743 ddsd.ddpfPixelFormat.dwRGBBitCount = 8;
744 ddsd.ddpfPixelFormat.dwRBitMask = 0xFF;
745 ddsd.ddpfPixelFormat.dwGBitMask = 0;
746 ddsd.ddpfPixelFormat.dwBBitMask = 0;
747 /* request given buffer size, rounded to 1k */
748 ddsd.dwWidth = 1024;
749 ddsd.dwHeight = (sizeof(CRVBOXHGCMBUFFER) + conn->buffer_size + ddsd.dwWidth-1)/ddsd.dwWidth;
750
751 hr = IDirectDraw_CreateSurface(g_crvboxhgcm.pDirectDraw, &ddsd, &lpDDS, NULL);
752 if (hr != DD_OK)
753 {
754 crWarning("Failed to create DirectDraw surface (%x)\n", hr);
755 }
756 else
757 {
758 crDebug("Created DirectDraw surface (%x)\n", lpDDS);
759
760 hr = IDirectDrawSurface_Lock(lpDDS, NULL, &ddsd, DDLOCK_SURFACEMEMORYPTR, NULL);
761 if (hr != DD_OK)
762 {
763 crWarning("Failed to lock DirectDraw surface (%x)\n", hr);
764 IDirectDrawSurface_Release(lpDDS);
765 }
766 else
767 {
768 uint32_t cbLocked;
769 cbLocked = (ddsd.dwFlags & DDSD_LINEARSIZE) ? ddsd.dwLinearSize : ddsd.lPitch*ddsd.dwHeight;
770
771 crDebug("Locked %d bytes DirectDraw surface\n", cbLocked);
772
773 buf = (CRVBOXHGCMBUFFER *) ddsd.lpSurface;
774 CRASSERT(buf);
775 buf->magic = CR_VBOXHGCM_BUFFER_MAGIC;
776 buf->kind = CR_VBOXHGCM_DDRAW_SURFACE;
777 buf->allocated = cbLocked;
778 buf->pDDS = lpDDS;
779 }
780 }
781 }
782#endif
783
784 /* We're either on host side, or we failed to allocate DDRAW buffer */
785 if (!buf)
786 {
787 crDebug("Using system malloc\n");
788 buf = (CRVBOXHGCMBUFFER *) crAlloc( sizeof(CRVBOXHGCMBUFFER) + conn->buffer_size );
789 CRASSERT(buf);
790 buf->magic = CR_VBOXHGCM_BUFFER_MAGIC;
791 buf->kind = CR_VBOXHGCM_MEMORY;
792 buf->allocated = conn->buffer_size;
793#ifdef RT_OS_WINDOWS
794 buf->pDDS = NULL;
795#endif
796 }
797 }
798
799#ifdef CHROMIUM_THREADSAFE
800 crUnlockMutex(&g_crvboxhgcm.mutex);
801#endif
802
803 return (void *)( buf + 1 );
804
805}
806
807static void *crVBoxHGCMAlloc(CRConnection *conn)
808{
809 void *pvBuff;
810 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
811 pvBuff = _crVBoxHGCMAlloc(conn);
812 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
813 return pvBuff;
814}
815
816static void _crVBoxHGCMWriteExact(CRConnection *conn, const void *buf, unsigned int len)
817{
818 int rc;
819 int32_t callRes;
820
821#ifdef IN_GUEST
822 if (conn->u32InjectClientID)
823 {
824 CRVBOXHGCMINJECT parms;
825
826 parms.hdr.result = VERR_WRONG_ORDER;
827 parms.hdr.u32ClientID = conn->u32ClientID;
828 parms.hdr.u32Function = SHCRGL_GUEST_FN_INJECT;
829 parms.hdr.cParms = SHCRGL_CPARMS_INJECT;
830
831 parms.u32ClientID.type = VMMDevHGCMParmType_32bit;
832 parms.u32ClientID.u.value32 = conn->u32InjectClientID;
833
834 parms.pBuffer.type = VMMDevHGCMParmType_LinAddr_In;
835 parms.pBuffer.u.Pointer.size = len;
836 parms.pBuffer.u.Pointer.u.linearAddr = (uintptr_t) buf;
837
838 rc = crVBoxHGCMCall(&parms, sizeof(parms));
839 callRes = parms.hdr.result;
840 }
841 else
842#endif
843 {
844 CRVBOXHGCMWRITE parms;
845
846 parms.hdr.result = VERR_WRONG_ORDER;
847 parms.hdr.u32ClientID = conn->u32ClientID;
848 parms.hdr.u32Function = SHCRGL_GUEST_FN_WRITE;
849 parms.hdr.cParms = SHCRGL_CPARMS_WRITE;
850
851 parms.pBuffer.type = VMMDevHGCMParmType_LinAddr_In;
852 parms.pBuffer.u.Pointer.size = len;
853 parms.pBuffer.u.Pointer.u.linearAddr = (uintptr_t) buf;
854
855 rc = crVBoxHGCMCall(&parms, sizeof(parms));
856 callRes = parms.hdr.result;
857 }
858
859 if (RT_FAILURE(rc) || RT_FAILURE(callRes))
860 {
861 crWarning("SHCRGL_GUEST_FN_WRITE failed with %x %x\n", rc, callRes);
862 }
863}
864
865static void crVBoxHGCMWriteExact(CRConnection *conn, const void *buf, unsigned int len)
866{
867 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
868 _crVBoxHGCMWriteExact(conn, buf, len);
869 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
870}
871
872static void crVBoxHGCMReadExact( CRConnection *conn, const void *buf, unsigned int len )
873{
874 CRVBOXHGCMREAD parms;
875 int rc;
876
877 parms.hdr.result = VERR_WRONG_ORDER;
878 parms.hdr.u32ClientID = conn->u32ClientID;
879 parms.hdr.u32Function = SHCRGL_GUEST_FN_READ;
880 parms.hdr.cParms = SHCRGL_CPARMS_READ;
881
882 CRASSERT(!conn->pBuffer); //make sure there's no data to process
883 parms.pBuffer.type = VMMDevHGCMParmType_LinAddr_Out;
884 parms.pBuffer.u.Pointer.size = conn->cbHostBufferAllocated;
885 parms.pBuffer.u.Pointer.u.linearAddr = (uintptr_t) conn->pHostBuffer;
886
887 parms.cbBuffer.type = VMMDevHGCMParmType_32bit;
888 parms.cbBuffer.u.value32 = 0;
889
890 rc = crVBoxHGCMCall(&parms, sizeof(parms));
891
892 if (RT_FAILURE(rc) || RT_FAILURE(parms.hdr.result))
893 {
894 crWarning("SHCRGL_GUEST_FN_READ failed with %x %x\n", rc, parms.hdr.result);
895 return;
896 }
897
898 if (parms.cbBuffer.u.value32)
899 {
900 //conn->pBuffer = (uint8_t*) parms.pBuffer.u.Pointer.u.linearAddr;
901 conn->pBuffer = conn->pHostBuffer;
902 conn->cbBuffer = parms.cbBuffer.u.value32;
903 }
904
905 if (conn->cbBuffer)
906 _crVBoxHGCMReceiveMessage(conn);
907
908}
909
910/* Same as crVBoxHGCMWriteExact, but combined with read of writeback data.
911 * This halves the number of HGCM calls we do,
912 * most likely crVBoxHGCMPollHost shouldn't be called at all now.
913 */
914static void
915crVBoxHGCMWriteReadExact(CRConnection *conn, const void *buf, unsigned int len, CRVBOXHGCMBUFFERKIND bufferKind)
916{
917 CRVBOXHGCMWRITEREAD parms;
918 int rc;
919
920 parms.hdr.result = VERR_WRONG_ORDER;
921 parms.hdr.u32ClientID = conn->u32ClientID;
922 parms.hdr.u32Function = SHCRGL_GUEST_FN_WRITE_READ;
923 parms.hdr.cParms = SHCRGL_CPARMS_WRITE_READ;
924
925 //if (bufferKind != CR_VBOXHGCM_DDRAW_SURFACE)
926 {
927 parms.pBuffer.type = VMMDevHGCMParmType_LinAddr_In;
928 parms.pBuffer.u.Pointer.size = len;
929 parms.pBuffer.u.Pointer.u.linearAddr = (uintptr_t) buf;
930 }
931 /*else ///@todo it fails badly, have to check why. bird: This fails because buf isn't a physical address?
932 {
933 parms.pBuffer.type = VMMDevHGCMParmType_PhysAddr;
934 parms.pBuffer.u.Pointer.size = len;
935 parms.pBuffer.u.Pointer.u.physAddr = (uintptr_t) buf;
936 }*/
937
938 CRASSERT(!conn->pBuffer); //make sure there's no data to process
939 parms.pWriteback.type = VMMDevHGCMParmType_LinAddr_Out;
940 parms.pWriteback.u.Pointer.size = conn->cbHostBufferAllocated;
941 parms.pWriteback.u.Pointer.u.linearAddr = (uintptr_t) conn->pHostBuffer;
942
943 parms.cbWriteback.type = VMMDevHGCMParmType_32bit;
944 parms.cbWriteback.u.value32 = 0;
945
946 rc = crVBoxHGCMCall(&parms, sizeof(parms));
947
948#ifdef RT_OS_LINUX
949 if (VERR_OUT_OF_RANGE==rc && CR_VBOXHGCM_USERALLOCATED==bufferKind)
950 {
951 /*Buffer is too big, so send it in split chunks*/
952 CRVBOXHGCMWRITEBUFFER wbParms;
953
954 wbParms.hdr.result = VERR_WRONG_ORDER;
955 wbParms.hdr.u32ClientID = conn->u32ClientID;
956 wbParms.hdr.u32Function = SHCRGL_GUEST_FN_WRITE_BUFFER;
957 wbParms.hdr.cParms = SHCRGL_CPARMS_WRITE_BUFFER;
958
959 wbParms.iBufferID.type = VMMDevHGCMParmType_32bit;
960 wbParms.iBufferID.u.value32 = 0;
961
962 wbParms.cbBufferSize.type = VMMDevHGCMParmType_32bit;
963 wbParms.cbBufferSize.u.value32 = len;
964
965 wbParms.ui32Offset.type = VMMDevHGCMParmType_32bit;
966 wbParms.ui32Offset.u.value32 = 0;
967
968 wbParms.pBuffer.type = VMMDevHGCMParmType_LinAddr_In;
969 wbParms.pBuffer.u.Pointer.size = MIN(CR_HGCM_SPLIT_BUFFER_SIZE, len);
970 wbParms.pBuffer.u.Pointer.u.linearAddr = (uintptr_t) buf;
971
972 if (len<CR_HGCM_SPLIT_BUFFER_SIZE)
973 {
974 crError("VERR_OUT_OF_RANGE in crVBoxHGCMWriteReadExact for %u bytes write", len);
975 return;
976 }
977
978 while (wbParms.pBuffer.u.Pointer.size)
979 {
980 crDebug("SHCRGL_GUEST_FN_WRITE_BUFFER, offset=%u, size=%u", wbParms.ui32Offset.u.value32, wbParms.pBuffer.u.Pointer.size);
981
982 rc = crVBoxHGCMCall(&wbParms, sizeof(wbParms));
983 if (RT_FAILURE(rc) || RT_FAILURE(wbParms.hdr.result))
984 {
985 crError("SHCRGL_GUEST_FN_WRITE_BUFFER (%i) failed with %x %x\n", wbParms.pBuffer.u.Pointer.size, rc, wbParms.hdr.result);
986 return;
987 }
988
989 wbParms.ui32Offset.u.value32 += wbParms.pBuffer.u.Pointer.size;
990 wbParms.pBuffer.u.Pointer.u.linearAddr += (uintptr_t) wbParms.pBuffer.u.Pointer.size;
991 wbParms.pBuffer.u.Pointer.size = MIN(CR_HGCM_SPLIT_BUFFER_SIZE, len-wbParms.ui32Offset.u.value32);
992 }
993
994 /*now issue GUEST_FN_WRITE_READ_BUFFERED referencing the buffer we'd made*/
995 {
996 CRVBOXHGCMWRITEREADBUFFERED wrbParms;
997
998 wrbParms.hdr.result = VERR_WRONG_ORDER;
999 wrbParms.hdr.u32ClientID = conn->u32ClientID;
1000 wrbParms.hdr.u32Function = SHCRGL_GUEST_FN_WRITE_READ_BUFFERED;
1001 wrbParms.hdr.cParms = SHCRGL_CPARMS_WRITE_READ_BUFFERED;
1002
1003 crMemcpy(&wrbParms.iBufferID, &wbParms.iBufferID, sizeof(HGCMFunctionParameter));
1004 crMemcpy(&wrbParms.pWriteback, &parms.pWriteback, sizeof(HGCMFunctionParameter));
1005 crMemcpy(&wrbParms.cbWriteback, &parms.cbWriteback, sizeof(HGCMFunctionParameter));
1006
1007 rc = crVBoxHGCMCall(&wrbParms, sizeof(wrbParms));
1008
1009 /*bit of hack to reuse code below*/
1010 parms.hdr.result = wrbParms.hdr.result;
1011 crMemcpy(&parms.cbWriteback, &wrbParms.cbWriteback, sizeof(HGCMFunctionParameter));
1012 crMemcpy(&parms.pWriteback, &wrbParms.pWriteback, sizeof(HGCMFunctionParameter));
1013 }
1014 }
1015#endif
1016
1017 if (RT_FAILURE(rc) || RT_FAILURE(parms.hdr.result))
1018 {
1019
1020 if ((VERR_BUFFER_OVERFLOW == parms.hdr.result) && RT_SUCCESS(rc))
1021 {
1022 /* reallocate buffer and retry */
1023
1024 CRASSERT(parms.cbWriteback.u.value32>conn->cbHostBufferAllocated);
1025
1026 crDebug("Reallocating host buffer from %d to %d bytes", conn->cbHostBufferAllocated, parms.cbWriteback.u.value32);
1027
1028 crFree(conn->pHostBuffer);
1029 conn->cbHostBufferAllocated = parms.cbWriteback.u.value32;
1030 conn->pHostBuffer = crAlloc(conn->cbHostBufferAllocated);
1031
1032 crVBoxHGCMReadExact(conn, buf, len);
1033
1034 return;
1035 }
1036 else
1037 {
1038 crWarning("SHCRGL_GUEST_FN_WRITE_READ (%i) failed with %x %x\n", len, rc, parms.hdr.result);
1039 return;
1040 }
1041 }
1042
1043 if (parms.cbWriteback.u.value32)
1044 {
1045 //conn->pBuffer = (uint8_t*) parms.pWriteback.u.Pointer.u.linearAddr;
1046 conn->pBuffer = conn->pHostBuffer;
1047 conn->cbBuffer = parms.cbWriteback.u.value32;
1048 }
1049
1050 if (conn->cbBuffer)
1051 _crVBoxHGCMReceiveMessage(conn);
1052}
1053
1054static void crVBoxHGCMSend(CRConnection *conn, void **bufp,
1055 const void *start, unsigned int len)
1056{
1057 CRVBOXHGCMBUFFER *hgcm_buffer;
1058 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1059
1060 if (!bufp) /* We're sending a user-allocated buffer. */
1061 {
1062#ifndef IN_GUEST
1063 //@todo remove temp buffer allocation in unpacker
1064 /* we're at the host side, so just store data until guest polls us */
1065 _crVBoxHGCMWriteBytes(conn, start, len);
1066#else
1067 CRASSERT(!conn->u32InjectClientID);
1068 crDebug("SHCRGL: sending userbuf with %d bytes\n", len);
1069 crVBoxHGCMWriteReadExact(conn, start, len, CR_VBOXHGCM_USERALLOCATED);
1070#endif
1071 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1072 return;
1073 }
1074
1075 /* The region [start .. start + len + 1] lies within a buffer that
1076 * was allocated with crVBoxHGCMAlloc() and can be put into the free
1077 * buffer pool when we're done sending it.
1078 */
1079
1080 hgcm_buffer = (CRVBOXHGCMBUFFER *)(*bufp) - 1;
1081 CRASSERT(hgcm_buffer->magic == CR_VBOXHGCM_BUFFER_MAGIC);
1082
1083 /* Length would be passed as part of HGCM pointer description
1084 * No need to prepend it to the buffer
1085 */
1086#ifdef IN_GUEST
1087 if (conn->u32InjectClientID)
1088 {
1089 _crVBoxHGCMWriteExact(conn, start, len);
1090 }
1091 else
1092#endif
1093 crVBoxHGCMWriteReadExact(conn, start, len, hgcm_buffer->kind);
1094
1095 /* Reclaim this pointer for reuse */
1096#ifdef CHROMIUM_THREADSAFE
1097 crLockMutex(&g_crvboxhgcm.mutex);
1098#endif
1099 crBufferPoolPush(g_crvboxhgcm.bufpool, hgcm_buffer, hgcm_buffer->allocated);
1100#ifdef CHROMIUM_THREADSAFE
1101 crUnlockMutex(&g_crvboxhgcm.mutex);
1102#endif
1103
1104 /* Since the buffer's now in the 'free' buffer pool, the caller can't
1105 * use it any more. Setting bufp to NULL will make sure the caller
1106 * doesn't try to re-use the buffer.
1107 */
1108 *bufp = NULL;
1109
1110 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1111}
1112
1113static void crVBoxHGCMPollHost(CRConnection *conn)
1114{
1115 CRVBOXHGCMREAD parms;
1116 int rc;
1117
1118 CRASSERT(!conn->pBuffer);
1119
1120 parms.hdr.result = VERR_WRONG_ORDER;
1121 parms.hdr.u32ClientID = conn->u32ClientID;
1122 parms.hdr.u32Function = SHCRGL_GUEST_FN_READ;
1123 parms.hdr.cParms = SHCRGL_CPARMS_READ;
1124
1125 parms.pBuffer.type = VMMDevHGCMParmType_LinAddr_Out;
1126 parms.pBuffer.u.Pointer.size = conn->cbHostBufferAllocated;
1127 parms.pBuffer.u.Pointer.u.linearAddr = (uintptr_t) conn->pHostBuffer;
1128
1129 parms.cbBuffer.type = VMMDevHGCMParmType_32bit;
1130 parms.cbBuffer.u.value32 = 0;
1131
1132 rc = crVBoxHGCMCall(&parms, sizeof(parms));
1133
1134 if (RT_FAILURE(rc) || RT_FAILURE(parms.hdr.result))
1135 {
1136 crDebug("SHCRGL_GUEST_FN_READ failed with %x %x\n", rc, parms.hdr.result);
1137 return;
1138 }
1139
1140 if (parms.cbBuffer.u.value32)
1141 {
1142 conn->pBuffer = (uint8_t*) parms.pBuffer.u.Pointer.u.linearAddr;
1143 conn->cbBuffer = parms.cbBuffer.u.value32;
1144 }
1145}
1146
1147static void crVBoxHGCMSingleRecv(CRConnection *conn, void *buf, unsigned int len)
1148{
1149 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1150 crVBoxHGCMReadExact(conn, buf, len);
1151 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1152}
1153
1154static void _crVBoxHGCMFree(CRConnection *conn, void *buf)
1155{
1156 CRVBOXHGCMBUFFER *hgcm_buffer = (CRVBOXHGCMBUFFER *) buf - 1;
1157
1158 CRASSERT(hgcm_buffer->magic == CR_VBOXHGCM_BUFFER_MAGIC);
1159
1160 /*@todo wrong len for redir buffers*/
1161 conn->recv_credits += hgcm_buffer->len;
1162
1163 switch (hgcm_buffer->kind)
1164 {
1165 case CR_VBOXHGCM_MEMORY:
1166#ifdef RT_OS_WINDOWS
1167 case CR_VBOXHGCM_DDRAW_SURFACE:
1168#endif
1169#ifdef CHROMIUM_THREADSAFE
1170 crLockMutex(&g_crvboxhgcm.mutex);
1171#endif
1172 if (g_crvboxhgcm.bufpool) {
1173 //@todo o'rly?
1174 /* pool may have been deallocated just a bit earlier in response
1175 * to a SIGPIPE (Broken Pipe) signal.
1176 */
1177 crBufferPoolPush(g_crvboxhgcm.bufpool, hgcm_buffer, hgcm_buffer->allocated);
1178 }
1179#ifdef CHROMIUM_THREADSAFE
1180 crUnlockMutex(&g_crvboxhgcm.mutex);
1181#endif
1182 break;
1183
1184 case CR_VBOXHGCM_MEMORY_BIG:
1185 crFree( hgcm_buffer );
1186 break;
1187
1188 default:
1189 crError( "Weird buffer kind trying to free in crVBoxHGCMFree: %d", hgcm_buffer->kind );
1190 }
1191}
1192
1193static void crVBoxHGCMFree(CRConnection *conn, void *buf)
1194{
1195 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1196 _crVBoxHGCMFree(conn, buf);
1197 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1198}
1199
1200static void _crVBoxHGCMReceiveMessage(CRConnection *conn)
1201{
1202 uint32_t len;
1203 CRVBOXHGCMBUFFER *hgcm_buffer;
1204 CRMessage *msg;
1205 CRMessageType cached_type;
1206
1207 len = conn->cbBuffer;
1208 CRASSERT(len > 0);
1209 CRASSERT(conn->pBuffer);
1210
1211#ifndef IN_GUEST
1212 if (conn->allow_redir_ptr)
1213 {
1214#endif //IN_GUEST
1215 CRASSERT(conn->buffer_size >= sizeof(CRMessageRedirPtr));
1216
1217 hgcm_buffer = (CRVBOXHGCMBUFFER *) _crVBoxHGCMAlloc( conn ) - 1;
1218 hgcm_buffer->len = sizeof(CRMessageRedirPtr);
1219
1220 msg = (CRMessage *) (hgcm_buffer + 1);
1221
1222 msg->header.type = CR_MESSAGE_REDIR_PTR;
1223 msg->redirptr.pMessage = (CRMessageHeader*) (conn->pBuffer);
1224 msg->header.conn_id = msg->redirptr.pMessage->conn_id;
1225
1226 cached_type = msg->redirptr.pMessage->type;
1227
1228 conn->cbBuffer = 0;
1229 conn->pBuffer = NULL;
1230#ifndef IN_GUEST
1231 }
1232 else
1233 {
1234 if ( len <= conn->buffer_size )
1235 {
1236 /* put in pre-allocated buffer */
1237 hgcm_buffer = (CRVBOXHGCMBUFFER *) _crVBoxHGCMAlloc( conn ) - 1;
1238 }
1239 else
1240 {
1241 /* allocate new buffer,
1242 * not using pool here as it's most likely one time transfer of huge texture
1243 */
1244 hgcm_buffer = (CRVBOXHGCMBUFFER *) crAlloc( sizeof(CRVBOXHGCMBUFFER) + len );
1245 hgcm_buffer->magic = CR_VBOXHGCM_BUFFER_MAGIC;
1246 hgcm_buffer->kind = CR_VBOXHGCM_MEMORY_BIG;
1247 hgcm_buffer->allocated = sizeof(CRVBOXHGCMBUFFER) + len;
1248# ifdef RT_OS_WINDOWS
1249 hgcm_buffer->pDDS = NULL;
1250# endif
1251 }
1252
1253 hgcm_buffer->len = len;
1254 _crVBoxHGCMReadBytes(conn, hgcm_buffer + 1, len);
1255
1256 msg = (CRMessage *) (hgcm_buffer + 1);
1257 cached_type = msg->header.type;
1258 }
1259#endif //IN_GUEST
1260
1261 conn->recv_credits -= len;
1262 conn->total_bytes_recv += len;
1263 conn->recv_count++;
1264
1265 crNetDispatchMessage( g_crvboxhgcm.recv_list, conn, msg, len );
1266
1267 /* CR_MESSAGE_OPCODES is freed in crserverlib/server_stream.c with crNetFree.
1268 * OOB messages are the programmer's problem. -- Humper 12/17/01
1269 */
1270 if (cached_type != CR_MESSAGE_OPCODES
1271 && cached_type != CR_MESSAGE_OOB
1272 && cached_type != CR_MESSAGE_GATHER)
1273 {
1274 _crVBoxHGCMFree(conn, msg);
1275 }
1276}
1277
1278static void crVBoxHGCMReceiveMessage(CRConnection *conn)
1279{
1280 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1281 _crVBoxHGCMReceiveMessage(conn);
1282 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1283}
1284
1285
1286/*
1287 * Called on host side only, to "accept" client connection
1288 */
1289static void crVBoxHGCMAccept( CRConnection *conn, const char *hostname, unsigned short port )
1290{
1291 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1292 CRASSERT(conn && conn->pHostBuffer);
1293#ifdef IN_GUEST
1294 CRASSERT(FALSE);
1295#endif
1296 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1297}
1298
1299static int crVBoxHGCMSetVersion(CRConnection *conn, unsigned int vMajor, unsigned int vMinor)
1300{
1301 CRVBOXHGCMSETVERSION parms;
1302 int rc;
1303
1304 parms.hdr.result = VERR_WRONG_ORDER;
1305 parms.hdr.u32ClientID = conn->u32ClientID;
1306 parms.hdr.u32Function = SHCRGL_GUEST_FN_SET_VERSION;
1307 parms.hdr.cParms = SHCRGL_CPARMS_SET_VERSION;
1308
1309 parms.vMajor.type = VMMDevHGCMParmType_32bit;
1310 parms.vMajor.u.value32 = CR_PROTOCOL_VERSION_MAJOR;
1311 parms.vMinor.type = VMMDevHGCMParmType_32bit;
1312 parms.vMinor.u.value32 = CR_PROTOCOL_VERSION_MINOR;
1313
1314 rc = crVBoxHGCMCall(&parms, sizeof(parms));
1315
1316 if (RT_FAILURE(rc) || RT_FAILURE(parms.hdr.result))
1317 {
1318 Assert(0);
1319
1320 crWarning("Host doesn't accept our version %d.%d. Make sure you have appropriate additions installed!",
1321 parms.vMajor.u.value32, parms.vMinor.u.value32);
1322 return FALSE;
1323 }
1324
1325 conn->vMajor = CR_PROTOCOL_VERSION_MAJOR;
1326 conn->vMinor = CR_PROTOCOL_VERSION_MINOR;
1327
1328 return TRUE;
1329}
1330
1331static int crVBoxHGCMSetPID(CRConnection *conn, unsigned long long pid)
1332{
1333 CRVBOXHGCMSETPID parms;
1334 int rc;
1335
1336 parms.hdr.result = VERR_WRONG_ORDER;
1337 parms.hdr.u32ClientID = conn->u32ClientID;
1338 parms.hdr.u32Function = SHCRGL_GUEST_FN_SET_PID;
1339 parms.hdr.cParms = SHCRGL_CPARMS_SET_PID;
1340
1341 parms.u64PID.type = VMMDevHGCMParmType_64bit;
1342 parms.u64PID.u.value64 = pid;
1343
1344 rc = crVBoxHGCMCall(&parms, sizeof(parms));
1345
1346 if (RT_FAILURE(rc) || RT_FAILURE(parms.hdr.result))
1347 {
1348 Assert(0);
1349
1350 crWarning("SHCRGL_GUEST_FN_SET_PID failed!");
1351 return FALSE;
1352 }
1353
1354 return TRUE;
1355}
1356
1357/**
1358 * The function that actually connects. This should only be called by clients,
1359 * guests in vbox case.
1360 * Servers go through crVBoxHGCMAccept;
1361 */
1362/*@todo use vbglR3Something here */
1363static int crVBoxHGCMDoConnect( CRConnection *conn )
1364{
1365#ifdef IN_GUEST
1366 VBoxGuestHGCMConnectInfo info;
1367
1368#ifdef RT_OS_WINDOWS
1369 DWORD cbReturned;
1370
1371 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1372
1373 if (g_crvboxhgcm.hGuestDrv == INVALID_HANDLE_VALUE)
1374 {
1375 /* open VBox guest driver */
1376 g_crvboxhgcm.hGuestDrv = CreateFile(VBOXGUEST_DEVICE_NAME,
1377 GENERIC_READ | GENERIC_WRITE,
1378 FILE_SHARE_READ | FILE_SHARE_WRITE,
1379 NULL,
1380 OPEN_EXISTING,
1381 FILE_ATTRIBUTE_NORMAL,
1382 NULL);
1383
1384 /* @todo check if we could rollback to softwareopengl */
1385 if (g_crvboxhgcm.hGuestDrv == INVALID_HANDLE_VALUE)
1386 {
1387 Assert(0);
1388 crDebug("could not open VBox Guest Additions driver! rc = %d\n", GetLastError());
1389 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1390 return FALSE;
1391 }
1392 }
1393#else
1394 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1395 if (g_crvboxhgcm.iGuestDrv == INVALID_HANDLE_VALUE)
1396 {
1397 g_crvboxhgcm.iGuestDrv = open(VBOXGUEST_USER_DEVICE_NAME, O_RDWR, 0);
1398 if (g_crvboxhgcm.iGuestDrv == INVALID_HANDLE_VALUE)
1399 {
1400 crDebug("could not open Guest Additions kernel module! rc = %d\n", errno);
1401 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1402 Assert(0);
1403 return FALSE;
1404 }
1405 }
1406#endif
1407
1408 memset (&info, 0, sizeof (info));
1409 info.Loc.type = VMMDevHGCMLoc_LocalHost_Existing;
1410 strcpy (info.Loc.u.host.achName, "VBoxSharedCrOpenGL");
1411
1412#ifdef RT_OS_WINDOWS
1413 if (DeviceIoControl(g_crvboxhgcm.hGuestDrv,
1414 VBOXGUEST_IOCTL_HGCM_CONNECT,
1415 &info, sizeof (info),
1416 &info, sizeof (info),
1417 &cbReturned,
1418 NULL))
1419#elif defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD)
1420 VBGLBIGREQ Hdr;
1421 Hdr.u32Magic = VBGLBIGREQ_MAGIC;
1422 Hdr.cbData = sizeof(info);
1423 Hdr.pvDataR3 = &info;
1424# if HC_ARCH_BITS == 32
1425 Hdr.u32Padding = 0;
1426# endif
1427 if (ioctl(g_crvboxhgcm.iGuestDrv, VBOXGUEST_IOCTL_HGCM_CONNECT, &Hdr) >= 0)
1428#else
1429 if (ioctl(g_crvboxhgcm.iGuestDrv, VBOXGUEST_IOCTL_HGCM_CONNECT, &info, sizeof (info)) >= 0)
1430#endif
1431 {
1432 if (info.result == VINF_SUCCESS)
1433 {
1434 int rc;
1435 conn->u32ClientID = info.u32ClientID;
1436 crDebug("HGCM connect was successful: client id =0x%x\n", conn->u32ClientID);
1437
1438 rc = crVBoxHGCMSetVersion(conn, CR_PROTOCOL_VERSION_MAJOR, CR_PROTOCOL_VERSION_MINOR);
1439 if (!rc)
1440 {
1441 return rc;
1442 }
1443#ifdef RT_OS_WINDOWS
1444 rc = crVBoxHGCMSetPID(conn, GetCurrentProcessId());
1445#else
1446 rc = crVBoxHGCMSetPID(conn, crGetPID());
1447#endif
1448 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1449 return rc;
1450 }
1451 else
1452 {
1453 crDebug("HGCM connect failed with rc=0x%x\n", info.result);
1454 Assert(0);
1455
1456 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1457 return FALSE;
1458 }
1459 }
1460 else
1461 {
1462#ifdef RT_OS_WINDOWS
1463 DWORD winEr = GetLastError();
1464 Assert(0);
1465 crDebug("IOCTL for HGCM connect failed with rc=0x%x\n", winEr);
1466#else
1467 crDebug("IOCTL for HGCM connect failed with rc=0x%x\n", errno);
1468#endif
1469 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1470 return FALSE;
1471 }
1472
1473 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1474 return TRUE;
1475
1476#else /*#ifdef IN_GUEST*/
1477 crError("crVBoxHGCMDoConnect called on host side!");
1478 CRASSERT(FALSE);
1479 return FALSE;
1480#endif
1481}
1482
1483/*@todo same, replace DeviceIoControl with vbglR3DoIOCtl */
1484static void crVBoxHGCMDoDisconnect( CRConnection *conn )
1485{
1486#ifdef IN_GUEST
1487 VBoxGuestHGCMDisconnectInfo info;
1488# ifdef RT_OS_WINDOWS
1489 DWORD cbReturned;
1490# endif
1491 int i;
1492#endif
1493
1494 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1495
1496 if (conn->pHostBuffer)
1497 {
1498 crFree(conn->pHostBuffer);
1499 conn->pHostBuffer = NULL;
1500 conn->cbHostBuffer = 0;
1501 conn->cbHostBufferAllocated = 0;
1502 }
1503
1504 conn->pBuffer = NULL;
1505 conn->cbBuffer = 0;
1506
1507 //@todo hold lock here?
1508 if (conn->type == CR_VBOXHGCM)
1509 {
1510 --g_crvboxhgcm.num_conns;
1511
1512 if (conn->index < g_crvboxhgcm.num_conns)
1513 {
1514 g_crvboxhgcm.conns[conn->index] = g_crvboxhgcm.conns[g_crvboxhgcm.num_conns];
1515 g_crvboxhgcm.conns[conn->index]->index = conn->index;
1516 }
1517 else g_crvboxhgcm.conns[conn->index] = NULL;
1518
1519 conn->type = CR_NO_CONNECTION;
1520 }
1521
1522#ifndef IN_GUEST
1523#else /* IN_GUEST */
1524 if (conn->u32ClientID)
1525 {
1526 memset (&info, 0, sizeof (info));
1527 info.u32ClientID = conn->u32ClientID;
1528
1529# ifdef RT_OS_WINDOWS
1530 if ( !DeviceIoControl(g_crvboxhgcm.hGuestDrv,
1531 VBOXGUEST_IOCTL_HGCM_DISCONNECT,
1532 &info, sizeof (info),
1533 &info, sizeof (info),
1534 &cbReturned,
1535 NULL) )
1536 {
1537 crDebug("Disconnect failed with %x\n", GetLastError());
1538 }
1539# elif defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD)
1540 VBGLBIGREQ Hdr;
1541 Hdr.u32Magic = VBGLBIGREQ_MAGIC;
1542 Hdr.cbData = sizeof(info);
1543 Hdr.pvDataR3 = &info;
1544# if HC_ARCH_BITS == 32
1545 Hdr.u32Padding = 0;
1546# endif
1547 if (ioctl(g_crvboxhgcm.iGuestDrv, VBOXGUEST_IOCTL_HGCM_DISCONNECT, &Hdr) >= 0)
1548# else
1549 if (ioctl(g_crvboxhgcm.iGuestDrv, VBOXGUEST_IOCTL_HGCM_DISCONNECT, &info, sizeof (info)) < 0)
1550 {
1551 crDebug("Disconnect failed with %x\n", errno);
1552 }
1553# endif
1554
1555 conn->u32ClientID = 0;
1556 }
1557
1558 /* see if any connections remain */
1559 for (i = 0; i < g_crvboxhgcm.num_conns; i++)
1560 if (g_crvboxhgcm.conns[i] && g_crvboxhgcm.conns[i]->type != CR_NO_CONNECTION)
1561 break;
1562
1563 /* close guest additions driver*/
1564 if (i>=g_crvboxhgcm.num_conns)
1565 {
1566# ifdef RT_OS_WINDOWS
1567 CloseHandle(g_crvboxhgcm.hGuestDrv);
1568 g_crvboxhgcm.hGuestDrv = INVALID_HANDLE_VALUE;
1569# else
1570 close(g_crvboxhgcm.iGuestDrv);
1571 g_crvboxhgcm.iGuestDrv = INVALID_HANDLE_VALUE;
1572# endif
1573 }
1574#endif /* IN_GUEST */
1575
1576 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1577}
1578
1579static void crVBoxHGCMInstantReclaim(CRConnection *conn, CRMessage *mess)
1580{
1581 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1582 _crVBoxHGCMFree(conn, mess);
1583 CRASSERT(FALSE);
1584 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1585}
1586
1587static void crVBoxHGCMHandleNewMessage( CRConnection *conn, CRMessage *msg, unsigned int len )
1588{
1589 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1590 CRASSERT(FALSE);
1591 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1592}
1593
1594#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
1595
1596bool _crVBoxHGSMIInit()
1597{
1598#ifndef VBOX_CRHGSMI_WITH_D3DDEV
1599 static
1600#endif
1601 int bHasHGSMI = -1;
1602
1603 if (bHasHGSMI < 0)
1604 {
1605 int rc;
1606#ifndef VBOX_CRHGSMI_WITH_D3DDEV
1607 rc = VBoxCrHgsmiInit();
1608#else
1609 VBOXCRHGSMI_CALLBACKS Callbacks;
1610 Callbacks.pfnClientCreate = _crVBoxHGSMIClientCreate;
1611 Callbacks.pfnClientDestroy = _crVBoxHGSMIClientDestroy;
1612 rc = VBoxCrHgsmiInit(&Callbacks);
1613#endif
1614 AssertRC(rc);
1615 if (RT_SUCCESS(rc))
1616 bHasHGSMI = 1;
1617 else
1618 bHasHGSMI = 0;
1619 }
1620
1621 Assert(bHasHGSMI);
1622
1623 return bHasHGSMI;
1624}
1625
1626void _crVBoxHGSMITearDown()
1627{
1628 VBoxCrHgsmiTerm();
1629}
1630
1631static void *_crVBoxHGSMIDoAlloc(CRConnection *conn, PCRVBOXHGSMI_CLIENT pClient)
1632{
1633 PVBOXUHGSMI_BUFFER buf;
1634 CRVBOXHGCMBUFFER *pData = NULL;
1635 uint32_t cbSize = conn->buffer_size;
1636 int rc;
1637
1638 buf = _crVBoxHGSMIBufAlloc(pClient, CRVBOXHGSMI_BUF_SIZE(cbSize));
1639 Assert(buf);
1640 if (buf)
1641 {
1642 VBOXUHGSMI_BUFFER_LOCK_FLAGS fFlags;
1643 buf->pvUserData = pClient;
1644 fFlags.Value = 0;
1645 fFlags.bDiscard = 1;
1646 rc = buf->pfnLock(buf, 0, CRVBOXHGSMI_BUF_LOCK_SIZE(cbSize), fFlags, (void**)&pData);
1647 if (RT_SUCCESS(rc))
1648 {
1649 pData->magic = CR_VBOXHGCM_BUFFER_MAGIC;
1650 pData->kind = CR_VBOXHGCM_UHGSMI_BUFFER;
1651 pData->pBuffer = buf;
1652 }
1653 else
1654 {
1655 crWarning("Failed to Lock the buffer, rc(%d)\n", rc);
1656 }
1657 return CRVBOXHGSMI_BUF_DATA(pData);
1658 }
1659
1660 /* fall back */
1661 return _crVBoxHGCMAlloc(conn);
1662}
1663
1664static void _crVBoxHGSMIFree(CRConnection *conn, void *buf)
1665{
1666 CRVBOXHGCMBUFFER *hgcm_buffer = (CRVBOXHGCMBUFFER *) buf - 1;
1667
1668 CRASSERT(hgcm_buffer->magic == CR_VBOXHGCM_BUFFER_MAGIC);
1669
1670 if (hgcm_buffer->kind == CR_VBOXHGCM_UHGSMI_BUFFER)
1671 {
1672 PVBOXUHGSMI_BUFFER pBuf = _crVBoxHGSMIBufFromHdr(hgcm_buffer);
1673 PCRVBOXHGSMI_CLIENT pClient = (PCRVBOXHGSMI_CLIENT)pBuf->pvUserData;
1674 pBuf->pfnUnlock(pBuf);
1675 _crVBoxHGSMIBufFree(pClient, pBuf);
1676 }
1677 else
1678 {
1679 _crVBoxHGCMFree(conn, buf);
1680 }
1681}
1682
1683static void *crVBoxHGSMIAlloc(CRConnection *conn)
1684{
1685 PCRVBOXHGSMI_CLIENT pClient;
1686 void *pvBuf;
1687
1688 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1689
1690 pClient = _crVBoxHGSMIClientGet(conn);
1691 if (pClient)
1692 {
1693 pvBuf = _crVBoxHGSMIDoAlloc(conn, pClient);
1694 Assert(pvBuf);
1695 }
1696 else
1697 {
1698 pvBuf = _crVBoxHGCMAlloc(conn);
1699 }
1700
1701 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1702
1703 return pvBuf;
1704}
1705
1706static void crVBoxHGSMIFree(CRConnection *conn, void *buf)
1707{
1708 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
1709 _crVBoxHGSMIFree(conn, buf);
1710 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
1711}
1712
1713static void _crVBoxHGSMIPollHost(CRConnection *conn, PCRVBOXHGSMI_CLIENT pClient)
1714{
1715 CRVBOXHGSMIREAD *parms = (CRVBOXHGSMIREAD *)_crVBoxHGSMICmdBufferLock(pClient, sizeof (*parms));
1716 int rc;
1717 VBOXUHGSMI_BUFFER_SUBMIT aSubmit[2];
1718 PVBOXUHGSMI_BUFFER pRecvBuffer;
1719 uint32_t cbBuffer;
1720
1721 Assert(parms);
1722
1723 parms->hdr.result = VERR_WRONG_ORDER;
1724 parms->hdr.u32ClientID = conn->u32ClientID;
1725 parms->hdr.u32Function = SHCRGL_GUEST_FN_READ;
1726// parms->hdr.u32Reserved = 0;
1727
1728 CRASSERT(!conn->pBuffer); //make sure there's no data to process
1729 parms->iBuffer = 1;
1730 parms->cbBuffer = 0;
1731
1732 _crVBoxHGSMICmdBufferUnlock(pClient);
1733
1734 pRecvBuffer = _crVBoxHGSMIRecvBufGet(pClient);
1735 Assert(pRecvBuffer);
1736 if (!pRecvBuffer)
1737 return;
1738
1739 _crVBoxHGSMIFillCmd(&aSubmit[0], pClient, sizeof (*parms));
1740
1741 aSubmit[1].pBuf = pRecvBuffer;
1742 aSubmit[1].offData = 0;
1743 aSubmit[1].cbData = pRecvBuffer->cbBuffer;
1744 aSubmit[1].fFlags.Value = 0;
1745 aSubmit[1].fFlags.bHostWriteOnly = 1;
1746
1747 rc = pClient->pHgsmi->pfnBufferSubmitAsynch(pClient->pHgsmi, aSubmit, 2);
1748 AssertRC(rc);
1749 if (RT_FAILURE(rc))
1750 {
1751 crError("pfnBufferSubmitAsynch failed with %d \n", rc);
1752 return;
1753 }
1754
1755 _crVBoxHGSMIWaitCmd(pClient);
1756
1757 parms = (CRVBOXHGSMIREAD *)_crVBoxHGSMICmdBufferLockRo(pClient, sizeof (*parms));
1758 Assert(parms);
1759 if (!parms)
1760 {
1761 crWarning("_crVBoxHGSMICmdBufferLockRo failed\n");
1762 return;
1763 }
1764
1765 if (RT_SUCCESS(parms->hdr.result))
1766 cbBuffer = parms->cbBuffer;
1767 else
1768 cbBuffer = 0;
1769
1770 _crVBoxHGSMICmdBufferUnlock(pClient);
1771
1772 if (cbBuffer)
1773 {
1774 void *pvData = _crVBoxHGSMIRecvBufData(pClient, cbBuffer);
1775 Assert(pvData);
1776 if (pvData)
1777 {
1778 conn->pBuffer = pvData;
1779 conn->cbBuffer = cbBuffer;
1780 }
1781 }
1782}
1783
1784static void _crVBoxHGSMIReadExact(CRConnection *conn, PCRVBOXHGSMI_CLIENT pClient)
1785{
1786 _crVBoxHGSMIPollHost(conn, pClient);
1787
1788 if (conn->cbBuffer)
1789 _crVBoxHGCMReceiveMessage(conn);
1790}
1791
1792/* Same as crVBoxHGCMWriteExact, but combined with read of writeback data.
1793 * This halves the number of HGCM calls we do,
1794 * most likely crVBoxHGCMPollHost shouldn't be called at all now.
1795 */
1796static void
1797_crVBoxHGSMIWriteReadExact(CRConnection *conn, PCRVBOXHGSMI_CLIENT pClient, void *buf, uint32_t offBuffer, unsigned int len, bool bIsBuffer)
1798{
1799 CRVBOXHGSMIWRITEREAD *parms = (CRVBOXHGSMIWRITEREAD*)_crVBoxHGSMICmdBufferLock(pClient, sizeof (*parms));
1800 int rc;
1801 VBOXUHGSMI_BUFFER_SUBMIT aSubmit[3];
1802 PVBOXUHGSMI_BUFFER pBuf = NULL;
1803 VBOXUHGSMI_BUFFER_LOCK_FLAGS fFlags;
1804// uint32_t cbBuffer;
1805
1806 parms->hdr.result = VERR_WRONG_ORDER;
1807 parms->hdr.u32ClientID = conn->u32ClientID;
1808 parms->hdr.u32Function = SHCRGL_GUEST_FN_WRITE_READ;
1809// parms->hdr.u32Reserved = 0;
1810
1811 parms->iBuffer = 1;
1812
1813 CRASSERT(!conn->pBuffer); //make sure there's no data to process
1814 parms->iWriteback = 2;
1815 parms->cbWriteback = 0;
1816
1817 _crVBoxHGSMICmdBufferUnlock(pClient);
1818
1819 if (!bIsBuffer)
1820 {
1821 void *pvBuf;
1822 pBuf = _crVBoxHGSMIBufAlloc(pClient, len);
1823 Assert(pBuf);
1824 if (!pBuf)
1825 {
1826 /* fallback */
1827 crVBoxHGCMWriteReadExact(conn, buf, len, CR_VBOXHGCM_USERALLOCATED);
1828 return;
1829 }
1830
1831 Assert(!offBuffer);
1832
1833 offBuffer = 0;
1834 fFlags.Value = 0;
1835 fFlags.bDiscard = 1;
1836 fFlags.bWriteOnly = 1;
1837 rc = pBuf->pfnLock(pBuf, 0, len, fFlags, &pvBuf);
1838 AssertRC(rc);
1839 if (RT_SUCCESS(rc))
1840 {
1841 memcpy(pvBuf, buf, len);
1842 rc = pBuf->pfnUnlock(pBuf);
1843 AssertRC(rc);
1844 CRASSERT(RT_SUCCESS(rc));
1845 }
1846 else
1847 {
1848 _crVBoxHGSMIBufFree(pClient, pBuf);
1849 /* fallback */
1850 crVBoxHGCMWriteReadExact(conn, buf, len, CR_VBOXHGCM_USERALLOCATED);
1851 return;
1852 }
1853 }
1854 else
1855 {
1856 pBuf = (PVBOXUHGSMI_BUFFER)buf;
1857 }
1858
1859 do
1860 {
1861 PVBOXUHGSMI_BUFFER pRecvBuffer = _crVBoxHGSMIRecvBufGet(pClient);
1862 Assert(pRecvBuffer);
1863 if (!pRecvBuffer)
1864 {
1865 break;
1866 }
1867
1868 _crVBoxHGSMIFillCmd(&aSubmit[0], pClient, sizeof (*parms));
1869
1870 aSubmit[1].pBuf = pBuf;
1871 aSubmit[1].offData = offBuffer;
1872 aSubmit[1].cbData = len;
1873 aSubmit[1].fFlags.Value = 0;
1874 aSubmit[1].fFlags.bHostReadOnly = 1;
1875
1876 aSubmit[2].pBuf = pRecvBuffer;
1877 aSubmit[2].offData = 0;
1878 aSubmit[2].cbData = pRecvBuffer->cbBuffer;
1879 aSubmit[2].fFlags.Value = 0;
1880
1881 rc = pClient->pHgsmi->pfnBufferSubmitAsynch(pClient->pHgsmi, aSubmit, 3);
1882 AssertRC(rc);
1883 if (RT_FAILURE(rc))
1884 {
1885 crError("pfnBufferSubmitAsynch failed with %d \n", rc);
1886 break;
1887 }
1888
1889 _crVBoxHGSMIWaitCmd(pClient);
1890
1891 parms = (CRVBOXHGSMIWRITEREAD *)_crVBoxHGSMICmdBufferLockRo(pClient, sizeof (*parms));
1892 Assert(parms);
1893 if (parms)
1894 {
1895 uint32_t cbWriteback = parms->cbWriteback;
1896 rc = parms->hdr.result;
1897 _crVBoxHGSMICmdBufferUnlock(pClient);
1898#ifdef DEBUG
1899 parms = NULL;
1900#endif
1901 if (RT_SUCCESS(rc))
1902 {
1903 if (cbWriteback)
1904 {
1905 void *pvData = _crVBoxHGSMIRecvBufData(pClient, cbWriteback);
1906 Assert(pvData);
1907 if (pvData)
1908 {
1909 conn->pBuffer = pvData;
1910 conn->cbBuffer = cbWriteback;
1911 _crVBoxHGCMReceiveMessage(conn);
1912 }
1913 }
1914 }
1915 else if (VERR_BUFFER_OVERFLOW == rc)
1916 {
1917 PVBOXUHGSMI_BUFFER pOldBuf = pClient->pHGBuffer;
1918 Assert(!pClient->pvHGBuffer);
1919 CRASSERT(cbWriteback>pClient->pHGBuffer->cbBuffer);
1920 crDebug("Reallocating host buffer from %d to %d bytes", conn->cbHostBufferAllocated, cbWriteback);
1921
1922 rc = pClient->pHgsmi->pfnBufferCreate(pClient->pHgsmi, CRVBOXHGSMI_PAGE_ALIGN(cbWriteback),
1923 VBOXUHGSMI_SYNCHOBJECT_TYPE_NONE, NULL, &pClient->pHGBuffer);
1924 AssertRC(rc);
1925 CRASSERT(RT_SUCCESS(rc));
1926 if (RT_SUCCESS(rc))
1927 {
1928 rc = pOldBuf->pfnDestroy(pOldBuf);
1929 CRASSERT(RT_SUCCESS(rc));
1930
1931 _crVBoxHGSMIReadExact(conn, pClient/*, cbWriteback*/);
1932 }
1933 else
1934 {
1935 crFree(conn->pHostBuffer);
1936 conn->cbHostBufferAllocated = cbWriteback;
1937 conn->pHostBuffer = crAlloc(conn->cbHostBufferAllocated);
1938 crVBoxHGCMReadExact(conn, NULL, cbWriteback);
1939 }
1940 }
1941 else
1942 {
1943 crWarning("SHCRGL_GUEST_FN_WRITE_READ (%i) failed with %x \n", len, rc);
1944 }
1945 }
1946 else
1947 {
1948 crWarning("_crVBoxHGSMICmdBufferLockRo failed\n");
1949 break;
1950 }
1951 } while (0);
1952
1953 if (!bIsBuffer)
1954 _crVBoxHGSMIBufFree(pClient, pBuf);
1955
1956 return;
1957}
1958
1959static void _crVBoxHGSMIWriteExact(CRConnection *conn, PCRVBOXHGSMI_CLIENT pClient, PVBOXUHGSMI_BUFFER pBuf, uint32_t offStart, unsigned int len)
1960{
1961 int rc;
1962 int32_t callRes;
1963 VBOXUHGSMI_BUFFER_SUBMIT aSubmit[2];
1964
1965#ifdef IN_GUEST
1966 if (conn->u32InjectClientID)
1967 {
1968 CRVBOXHGSMIINJECT *parms = (CRVBOXHGSMIINJECT *)_crVBoxHGSMICmdBufferLock(pClient, sizeof (*parms));
1969 Assert(parms);
1970 if (!parms)
1971 {
1972 return;
1973 }
1974
1975 parms->hdr.result = VERR_WRONG_ORDER;
1976 parms->hdr.u32ClientID = conn->u32ClientID;
1977 parms->hdr.u32Function = SHCRGL_GUEST_FN_INJECT;
1978// parms->hdr.u32Reserved = 0;
1979
1980 parms->u32ClientID = conn->u32InjectClientID;
1981
1982 parms->iBuffer = 1;
1983 _crVBoxHGSMICmdBufferUnlock(pClient);
1984
1985 _crVBoxHGSMIFillCmd(&aSubmit[0], pClient, sizeof (*parms));
1986
1987 aSubmit[1].pBuf = pBuf;
1988 aSubmit[1].offData = offStart;
1989 aSubmit[1].cbData = len;
1990 aSubmit[1].fFlags.Value = 0;
1991 aSubmit[1].fFlags.bHostReadOnly = 1;
1992
1993 rc = pClient->pHgsmi->pfnBufferSubmitAsynch(pClient->pHgsmi, aSubmit, 2);
1994 AssertRC(rc);
1995 if (RT_SUCCESS(rc))
1996 {
1997 _crVBoxHGSMIWaitCmd(pClient);
1998 /* @todo: do we need to wait for completion actually?
1999 * NOTE: in case we do not need completion,
2000 * we MUST specify bDoNotSignalCompletion flag for the command buffer */
2001// CRVBOXHGSMI_BUF_WAIT(pClient->pCmdBuffer);
2002
2003 callRes = _crVBoxHGSMICmdBufferGetRc(pClient);
2004 }
2005 else
2006 {
2007 /* we can not recover at this point, report error & exit */
2008 crError("pfnBufferSubmitAsynch failed with %d \n", rc);
2009 }
2010 }
2011 else
2012#endif
2013 {
2014 CRVBOXHGSMIWRITE * parms = (CRVBOXHGSMIWRITE *)_crVBoxHGSMICmdBufferLock(pClient, sizeof (*parms));;
2015
2016 parms->hdr.result = VERR_WRONG_ORDER;
2017 parms->hdr.u32ClientID = conn->u32ClientID;
2018 parms->hdr.u32Function = SHCRGL_GUEST_FN_WRITE;
2019// parms->hdr.u32Reserved = 0;
2020
2021 parms->iBuffer = 1;
2022 _crVBoxHGSMICmdBufferUnlock(pClient);
2023
2024 _crVBoxHGSMIFillCmd(&aSubmit[0], pClient, sizeof (*parms));
2025
2026 aSubmit[1].pBuf = pBuf;
2027 aSubmit[1].offData = offStart;
2028 aSubmit[1].cbData = len;
2029 aSubmit[1].fFlags.Value = 0;
2030 aSubmit[1].fFlags.bHostReadOnly = 1;
2031
2032 rc = pClient->pHgsmi->pfnBufferSubmitAsynch(pClient->pHgsmi, aSubmit, 2);
2033 AssertRC(rc);
2034 if (RT_SUCCESS(rc))
2035 {
2036 _crVBoxHGSMIWaitCmd(pClient);
2037 /* @todo: do we need to wait for completion actually?
2038 * NOTE: in case we do not need completion,
2039 * we MUST specify bDoNotSignalCompletion flag for the command buffer */
2040// CRVBOXHGSMI_BUF_WAIT(pClient->pCmdBuffer);
2041
2042 callRes = _crVBoxHGSMICmdBufferGetRc(pClient);
2043 }
2044 else
2045 {
2046 /* we can not recover at this point, report error & exit */
2047 crError("Failed to submit CrHhgsmi buffer");
2048 }
2049 }
2050
2051 if (RT_FAILURE(rc) || RT_FAILURE(callRes))
2052 {
2053 crWarning("SHCRGL_GUEST_FN_WRITE failed with %x %x\n", rc, callRes);
2054 }
2055}
2056
2057static void crVBoxHGSMISend(CRConnection *conn, void **bufp,
2058 const void *start, unsigned int len)
2059{
2060 PCRVBOXHGSMI_CLIENT pClient;
2061 PVBOXUHGSMI_BUFFER pBuf;
2062 CRVBOXHGCMBUFFER *hgcm_buffer;
2063
2064 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
2065
2066 if (!bufp) /* We're sending a user-allocated buffer. */
2067 {
2068 pClient = _crVBoxHGSMIClientGet(conn);
2069 if (pClient)
2070 {
2071#ifndef IN_GUEST
2072 //@todo remove temp buffer allocation in unpacker
2073 /* we're at the host side, so just store data until guest polls us */
2074 _crVBoxHGCMWriteBytes(conn, start, len);
2075#else
2076 CRASSERT(!conn->u32InjectClientID);
2077 crDebug("SHCRGL: sending userbuf with %d bytes\n", len);
2078 _crVBoxHGSMIWriteReadExact(conn, pClient, (void*)start, 0, len, false);
2079#endif
2080 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2081 return;
2082 }
2083
2084 /* fallback */
2085 crVBoxHGCMSend(conn, bufp, start, len);
2086 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2087 return;
2088 }
2089
2090 hgcm_buffer = (CRVBOXHGCMBUFFER *) *bufp - 1;
2091 Assert(hgcm_buffer->magic == CR_VBOXHGCM_BUFFER_MAGIC);
2092 if (hgcm_buffer->kind != CR_VBOXHGCM_UHGSMI_BUFFER)
2093 {
2094 /* fallback */
2095 crVBoxHGCMSend(conn, bufp, start, len);
2096 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2097 return;
2098 }
2099
2100 /* The region [start .. start + len + 1] lies within a buffer that
2101 * was allocated with crVBoxHGCMAlloc() and can be put into the free
2102 * buffer pool when we're done sending it.
2103 */
2104
2105 pBuf = _crVBoxHGSMIBufFromHdr(hgcm_buffer);
2106 Assert(pBuf);
2107 if (!pBuf)
2108 {
2109 crVBoxHGCMSend(conn, bufp, start, len);
2110 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2111 return;
2112 }
2113
2114 pClient = (PCRVBOXHGSMI_CLIENT)pBuf->pvUserData;
2115
2116 /* Length would be passed as part of HGCM pointer description
2117 * No need to prepend it to the buffer
2118 */
2119#ifdef IN_GUEST
2120 if (conn->u32InjectClientID)
2121 {
2122 _crVBoxHGSMIWriteExact(conn, pClient, pBuf, CRVBOXHGSMI_BUF_OFFSET(start, *bufp) + CRVBOXHGSMI_BUF_HDR_SIZE(), len);
2123 }
2124 else
2125#endif
2126 {
2127 _crVBoxHGSMIWriteReadExact(conn, pClient, pBuf, CRVBOXHGSMI_BUF_OFFSET(start, *bufp) + CRVBOXHGSMI_BUF_HDR_SIZE(), len, true);
2128 }
2129
2130 /* Reclaim this pointer for reuse */
2131 _crVBoxHGSMIBufFree(pClient, pBuf);
2132 /* Since the buffer's now in the 'free' buffer pool, the caller can't
2133 * use it any more. Setting bufp to NULL will make sure the caller
2134 * doesn't try to re-use the buffer.
2135 */
2136 *bufp = NULL;
2137
2138 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2139}
2140
2141static void crVBoxHGSMIWriteExact(CRConnection *conn, const void *buf, unsigned int len)
2142{
2143 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
2144 Assert(0);
2145
2146 CRASSERT(0);
2147// PCRVBOXHGSMI_CLIENT pClient;
2148// PVBOXUHGSMI_BUFFER pBuf = _crVBoxHGSMIBufFromMemPtr(buf);
2149// if (!pBuf)
2150// return;
2151// pClient = (PCRVBOXHGSMI_CLIENT)pBuf->pvUserData;
2152// _crVBoxHGSMIWriteExact(conn, pClient, pBuf, 0, len);
2153// _crVBoxHGSMIBufFree(pClient, pBuf);
2154 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2155}
2156
2157static void crVBoxHGSMISingleRecv(CRConnection *conn, void *buf, unsigned int len)
2158{
2159// PCRVBOXHGSMI_CLIENT pClient;
2160// PVBOXUHGSMI_BUFFER pBuf;
2161 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
2162// pBuf = _crVBoxHGSMIBufFromMemPtr(buf);
2163// Assert(pBuf);
2164 Assert(0);
2165 CRASSERT(0);
2166// if (!pBuf)
2167// {
2168// VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2169// return;
2170// }
2171// pClient = (PCRVBOXHGSMI_CLIENT)pBuf->pvUserData;
2172// _crVBoxHGSMIReadExact(conn, pClient);
2173 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2174}
2175
2176static void crVBoxHGSMIReceiveMessage(CRConnection *conn)
2177{
2178 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
2179
2180 Assert(0);
2181
2182 _crVBoxHGCMReceiveMessage(conn);
2183 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2184}
2185
2186/*
2187 * Called on host side only, to "accept" client connection
2188 */
2189static void crVBoxHGSMIAccept( CRConnection *conn, const char *hostname, unsigned short port )
2190{
2191 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
2192 Assert(0);
2193
2194 CRASSERT(conn && conn->pHostBuffer);
2195#ifdef IN_GUEST
2196 CRASSERT(FALSE);
2197#endif
2198 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2199}
2200
2201static int crVBoxHGSMIDoConnect( CRConnection *conn )
2202{
2203 return crVBoxHGCMDoConnect(conn);
2204}
2205
2206static void crVBoxHGSMIDoDisconnect( CRConnection *conn )
2207{
2208#ifndef VBOX_CRHGSMI_WITH_D3DDEV
2209 if (conn->HgsmiClient.pHgsmi)
2210 {
2211 PVBOXUHGSMI pHgsmi;
2212 _crVBoxHGSMIClientTerm(&conn->HgsmiClient, &pHgsmi);
2213 Assert(pHgsmi);
2214 VBoxCrHgsmiDestroy(pHgsmi);
2215 }
2216
2217#endif
2218 crVBoxHGCMDoDisconnect(conn);
2219}
2220
2221static void crVBoxHGSMIInstantReclaim(CRConnection *conn, CRMessage *mess)
2222{
2223 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
2224 Assert(0);
2225
2226 _crVBoxHGSMIFree(conn, mess);
2227 CRASSERT(FALSE);
2228
2229 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2230}
2231
2232static void crVBoxHGSMIHandleNewMessage( CRConnection *conn, CRMessage *msg, unsigned int len )
2233{
2234 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
2235 Assert(0);
2236
2237 CRASSERT(FALSE);
2238 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2239}
2240#endif
2241
2242void crVBoxHGCMInit(CRNetReceiveFuncList *rfl, CRNetCloseFuncList *cfl, unsigned int mtu)
2243{
2244 (void) mtu;
2245
2246 g_crvboxhgcm.recv_list = rfl;
2247 g_crvboxhgcm.close_list = cfl;
2248 if (g_crvboxhgcm.initialized)
2249 {
2250 return;
2251 }
2252
2253 VBOXCRHGSMIPROFILE_INIT();
2254
2255 g_crvboxhgcm.initialized = 1;
2256
2257#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
2258 g_crvboxhgcm.bHgsmiOn = _crVBoxHGSMIInit();
2259#endif
2260
2261 g_crvboxhgcm.num_conns = 0;
2262 g_crvboxhgcm.conns = NULL;
2263
2264 /* Can't open VBox guest driver here, because it gets called for host side as well */
2265 /*@todo as we have 2 dll versions, can do it now.*/
2266
2267#ifdef RT_OS_WINDOWS
2268 g_crvboxhgcm.hGuestDrv = INVALID_HANDLE_VALUE;
2269 g_crvboxhgcm.pDirectDraw = NULL;
2270#else
2271 g_crvboxhgcm.iGuestDrv = INVALID_HANDLE_VALUE;
2272#endif
2273
2274#ifdef CHROMIUM_THREADSAFE
2275 crInitMutex(&g_crvboxhgcm.mutex);
2276 crInitMutex(&g_crvboxhgcm.recvmutex);
2277#endif
2278 g_crvboxhgcm.bufpool = crBufferPoolInit(16);
2279}
2280
2281/* Callback function used to free buffer pool entries */
2282void crVBoxHGCMBufferFree(void *data)
2283{
2284#ifdef RT_OS_WINDOWS
2285 LPDIRECTDRAWSURFACE lpDDS;
2286#endif
2287 CRVBOXHGCMBUFFER *hgcm_buffer = (CRVBOXHGCMBUFFER *) data;
2288
2289 CRASSERT(hgcm_buffer->magic == CR_VBOXHGCM_BUFFER_MAGIC);
2290
2291 switch (hgcm_buffer->kind)
2292 {
2293 case CR_VBOXHGCM_MEMORY:
2294 crFree( hgcm_buffer );
2295 break;
2296#ifdef RT_OS_WINDOWS
2297 case CR_VBOXHGCM_DDRAW_SURFACE:
2298 lpDDS = hgcm_buffer->pDDS;
2299 CRASSERT(lpDDS);
2300 IDirectDrawSurface_Unlock(lpDDS, NULL);
2301 IDirectDrawSurface_Release(lpDDS);
2302 crDebug("DDraw surface freed (%x)\n", lpDDS);
2303 break;
2304#endif
2305 case CR_VBOXHGCM_MEMORY_BIG:
2306 crFree( hgcm_buffer );
2307 break;
2308
2309 default:
2310 crError( "Weird buffer kind trying to free in crVBoxHGCMBufferFree: %d", hgcm_buffer->kind );
2311 }
2312}
2313
2314void crVBoxHGCMTearDown(void)
2315{
2316 int32_t i, cCons;
2317
2318 if (!g_crvboxhgcm.initialized) return;
2319
2320 /* Connection count would be changed in calls to crNetDisconnect, so we have to store original value.
2321 * Walking array backwards is not a good idea as it could cause some issues if we'd disconnect clients not in the
2322 * order of their connection.
2323 */
2324 cCons = g_crvboxhgcm.num_conns;
2325 for (i=0; i<cCons; i++)
2326 {
2327 /* Note that [0] is intended, as the connections array would be shifted in each call to crNetDisconnect */
2328 crNetDisconnect(g_crvboxhgcm.conns[0]);
2329 }
2330 CRASSERT(0==g_crvboxhgcm.num_conns);
2331
2332#ifdef CHROMIUM_THREADSAFE
2333 crFreeMutex(&g_crvboxhgcm.mutex);
2334 crFreeMutex(&g_crvboxhgcm.recvmutex);
2335#endif
2336
2337 if (g_crvboxhgcm.bufpool)
2338 crBufferPoolCallbackFree(g_crvboxhgcm.bufpool, crVBoxHGCMBufferFree);
2339 g_crvboxhgcm.bufpool = NULL;
2340
2341 g_crvboxhgcm.initialized = 0;
2342
2343 crFree(g_crvboxhgcm.conns);
2344 g_crvboxhgcm.conns = NULL;
2345
2346#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
2347 if (g_crvboxhgcm.bHgsmiOn)
2348 {
2349 _crVBoxHGSMITearDown();
2350 }
2351#endif
2352
2353#ifdef RT_OS_WINDOWS
2354 if (g_crvboxhgcm.pDirectDraw)
2355 {
2356 IDirectDraw_Release(g_crvboxhgcm.pDirectDraw);
2357 g_crvboxhgcm.pDirectDraw = NULL;
2358 crDebug("DirectDraw released\n");
2359 }
2360#endif
2361}
2362
2363void crVBoxHGCMConnection(CRConnection *conn)
2364{
2365 int i, found = 0;
2366 int n_bytes;
2367
2368 CRASSERT(g_crvboxhgcm.initialized);
2369
2370#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
2371 if (g_crvboxhgcm.bHgsmiOn)
2372 {
2373 conn->type = CR_VBOXHGCM;
2374 conn->Alloc = crVBoxHGSMIAlloc;
2375 conn->Send = crVBoxHGSMISend;
2376 conn->SendExact = crVBoxHGSMIWriteExact;
2377 conn->Recv = crVBoxHGSMISingleRecv;
2378 conn->RecvMsg = crVBoxHGSMIReceiveMessage;
2379 conn->Free = crVBoxHGSMIFree;
2380 conn->Accept = crVBoxHGSMIAccept;
2381 conn->Connect = crVBoxHGSMIDoConnect;
2382 conn->Disconnect = crVBoxHGSMIDoDisconnect;
2383 conn->InstantReclaim = crVBoxHGSMIInstantReclaim;
2384 conn->HandleNewMessage = crVBoxHGSMIHandleNewMessage;
2385 }
2386 else
2387#endif
2388 {
2389 conn->type = CR_VBOXHGCM;
2390 conn->Alloc = crVBoxHGCMAlloc;
2391 conn->Send = crVBoxHGCMSend;
2392 conn->SendExact = crVBoxHGCMWriteExact;
2393 conn->Recv = crVBoxHGCMSingleRecv;
2394 conn->RecvMsg = crVBoxHGCMReceiveMessage;
2395 conn->Free = crVBoxHGCMFree;
2396 conn->Accept = crVBoxHGCMAccept;
2397 conn->Connect = crVBoxHGCMDoConnect;
2398 conn->Disconnect = crVBoxHGCMDoDisconnect;
2399 conn->InstantReclaim = crVBoxHGCMInstantReclaim;
2400 conn->HandleNewMessage = crVBoxHGCMHandleNewMessage;
2401 }
2402 conn->index = g_crvboxhgcm.num_conns;
2403 conn->sizeof_buffer_header = sizeof(CRVBOXHGCMBUFFER);
2404 conn->actual_network = 1;
2405
2406 conn->krecv_buf_size = 0;
2407
2408 conn->pBuffer = NULL;
2409 conn->cbBuffer = 0;
2410 conn->allow_redir_ptr = 1;
2411
2412 //@todo remove this crap at all later
2413 conn->cbHostBufferAllocated = 2*1024;
2414 conn->pHostBuffer = (uint8_t*) crAlloc(conn->cbHostBufferAllocated);
2415 CRASSERT(conn->pHostBuffer);
2416 conn->cbHostBuffer = 0;
2417
2418 /* Find a free slot */
2419 for (i = 0; i < g_crvboxhgcm.num_conns; i++) {
2420 if (g_crvboxhgcm.conns[i] == NULL) {
2421 conn->index = i;
2422 g_crvboxhgcm.conns[i] = conn;
2423 found = 1;
2424 break;
2425 }
2426 }
2427
2428 /* Realloc connection stack if we couldn't find a free slot */
2429 if (found == 0) {
2430 n_bytes = ( g_crvboxhgcm.num_conns + 1 ) * sizeof(*g_crvboxhgcm.conns);
2431 crRealloc( (void **) &g_crvboxhgcm.conns, n_bytes );
2432 g_crvboxhgcm.conns[g_crvboxhgcm.num_conns++] = conn;
2433 }
2434}
2435
2436int crVBoxHGCMRecv(void)
2437{
2438 int32_t i;
2439
2440 VBOXCRHGSMIPROFILE_FUNC_PROLOGUE();
2441
2442#ifdef IN_GUEST
2443 /* we're on guest side, poll host if it got something for us */
2444 for (i=0; i<g_crvboxhgcm.num_conns; i++)
2445 {
2446 CRConnection *conn = g_crvboxhgcm.conns[i];
2447
2448 if ( !conn || conn->type == CR_NO_CONNECTION )
2449 continue;
2450
2451 if (!conn->pBuffer)
2452 {
2453#if defined(VBOX_WITH_CRHGSMI) && defined(IN_GUEST)
2454 PCRVBOXHGSMI_CLIENT pClient;
2455 if (g_crvboxhgcm.bHgsmiOn && !!(pClient = _crVBoxHGSMIClientGet(conn)))
2456 {
2457 _crVBoxHGSMIPollHost(conn, pClient);
2458 }
2459 else
2460#endif
2461 {
2462 crVBoxHGCMPollHost(conn);
2463 }
2464 }
2465 }
2466#endif
2467
2468 for (i=0; i<g_crvboxhgcm.num_conns; i++)
2469 {
2470 CRConnection *conn = g_crvboxhgcm.conns[i];
2471
2472 if ( !conn || conn->type == CR_NO_CONNECTION )
2473 continue;
2474
2475 if (conn->cbBuffer>0)
2476 {
2477 _crVBoxHGCMReceiveMessage(conn);
2478 }
2479 }
2480
2481 VBOXCRHGSMIPROFILE_FUNC_EPILOGUE();
2482
2483 return 0;
2484}
2485
2486CRConnection** crVBoxHGCMDump( int *num )
2487{
2488 *num = g_crvboxhgcm.num_conns;
2489
2490 return g_crvboxhgcm.conns;
2491}
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