/** @file * * VirtualBox COM class implementation */ /* * Copyright (C) 2006-2007 innotek GmbH * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License as published by the Free Software Foundation, * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE * distribution. VirtualBox OSE is distributed in the hope that it will * be useful, but WITHOUT ANY WARRANTY of any kind. */ #include "DisplayImpl.h" #include "FramebufferImpl.h" #include "ConsoleImpl.h" #include "ConsoleVRDPServer.h" #include "VMMDev.h" #include "Logging.h" #include #include #include #include #ifdef DEBUG /* for VM_ASSERT_EMT(). */ # include #endif /** * Display driver instance data. */ typedef struct DRVMAINDISPLAY { /** Pointer to the display object. */ Display *pDisplay; /** Pointer to the driver instance structure. */ PPDMDRVINS pDrvIns; /** Pointer to the keyboard port interface of the driver/device above us. */ PPDMIDISPLAYPORT pUpPort; /** Our display connector interface. */ PDMIDISPLAYCONNECTOR Connector; } DRVMAINDISPLAY, *PDRVMAINDISPLAY; /** Converts PDMIDISPLAYCONNECTOR pointer to a DRVMAINDISPLAY pointer. */ #define PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface) ( (PDRVMAINDISPLAY) ((uintptr_t)pInterface - RT_OFFSETOF(DRVMAINDISPLAY, Connector)) ) #ifdef DEBUG_sunlover static STAMPROFILE StatDisplayRefresh; static int stam = 0; #endif /* DEBUG_sunlover */ // constructor / destructor ///////////////////////////////////////////////////////////////////////////// HRESULT Display::FinalConstruct() { mpVbvaMemory = NULL; mfVideoAccelEnabled = false; mfVideoAccelVRDP = false; mfu32SupportedOrders = 0; mcVideoAccelVRDPRefs = 0; mpPendingVbvaMemory = NULL; mfPendingVideoAccelEnable = false; mfMachineRunning = false; mpu8VbvaPartial = NULL; mcbVbvaPartial = 0; mParent = NULL; mpDrv = NULL; mpVMMDev = NULL; mfVMMDevInited = false; RTSemEventMultiCreate(&mUpdateSem); mLastAddress = NULL; mLastBytesPerLine = 0; mLastBitsPerPixel = 0, mLastWidth = 0; mLastHeight = 0; // mu32ResizeStatus = ResizeStatus_Void; return S_OK; } void Display::FinalRelease() { if (isReady()) uninit(); } // public initializer/uninitializer for internal purposes only ///////////////////////////////////////////////////////////////////////////// /** * Initializes the display object. * * @returns COM result indicator * @param parent handle of our parent object * @param qemuConsoleData address of common console data structure */ HRESULT Display::init (Console *parent) { LogFlowFunc (("isReady=%d", isReady())); ComAssertRet (parent, E_INVALIDARG); AutoLock alock (this); ComAssertRet (!isReady(), E_UNEXPECTED); mParent = parent; /* reset the event sems */ RTSemEventMultiReset(mUpdateSem); // by default, we have an internal framebuffer which is // NULL, i.e. a black hole for no display output // mFramebuffer = 0; mInternalFramebuffer = true; mFramebufferOpened = false; mSupportedAccelOps = 0; ULONG ul; mParent->machine()->COMGETTER(MonitorCount)(&ul); mcMonitors = ul; for (ul = 0; ul < mcMonitors; ul++) { maFramebuffers[ul].u32Offset = 0; maFramebuffers[ul].u32MaxFramebufferSize = 0; maFramebuffers[ul].u32InformationSize = 0; maFramebuffers[ul].pFramebuffer = NULL; maFramebuffers[ul].xOrigin = 0; maFramebuffers[ul].yOrigin = 0; maFramebuffers[ul].w = 0; maFramebuffers[ul].h = 0; maFramebuffers[ul].pHostEvents = NULL; maFramebuffers[ul].u32ResizeStatus = ResizeStatus_Void; maFramebuffers[ul].fDefaultFormat = false; memset (&maFramebuffers[ul].dirtyRect, 0 , sizeof (maFramebuffers[ul].dirtyRect)); } mParent->RegisterCallback(this); setReady (true); return S_OK; } /** * Uninitializes the instance and sets the ready flag to FALSE. * Called either from FinalRelease() or by the parent when it gets destroyed. */ void Display::uninit() { LogFlowFunc (("isReady=%d\n", isReady())); AutoLock alock (this); AssertReturn (isReady(), (void) 0); // mFramebuffer.setNull(); ULONG ul; for (ul = 0; ul < mcMonitors; ul++) { maFramebuffers[ul].pFramebuffer = NULL; } RTSemEventMultiDestroy(mUpdateSem); if (mParent) { mParent->UnregisterCallback(this); } if (mpDrv) mpDrv->pDisplay = NULL; mpDrv = NULL; mpVMMDev = NULL; mfVMMDevInited = true; setReady (false); } // IConsoleCallback method STDMETHODIMP Display::OnStateChange(MachineState_T machineState) { if (machineState == MachineState_Running) { LogFlowFunc (("Machine running\n")); mfMachineRunning = true; } else { mfMachineRunning = false; } return S_OK; } // public methods only for internal purposes ///////////////////////////////////////////////////////////////////////////// /** * @thread EMT */ static int callFramebufferResize (IFramebuffer *pFramebuffer, unsigned uScreenId, ULONG pixelFormat, void *pvVRAM, uint32_t bpp, uint32_t cbLine, int w, int h) { Assert (pFramebuffer); /* Call the framebuffer to try and set required pixelFormat. */ BOOL finished = TRUE; pFramebuffer->RequestResize (uScreenId, pixelFormat, (BYTE *) pvVRAM, bpp, cbLine, w, h, &finished); if (!finished) { LogFlowFunc (("External framebuffer wants us to wait!\n")); return VINF_VGA_RESIZE_IN_PROGRESS; } return VINF_SUCCESS; } /** * Handles display resize event. * Disables access to VGA device; * calls the framebuffer RequestResize method; * if framebuffer resizes synchronously, * updates the display connector data and enables access to the VGA device. * * @param w New display width * @param h New display height * * @thread EMT */ int Display::handleDisplayResize (unsigned uScreenId, uint32_t bpp, void *pvVRAM, uint32_t cbLine, int w, int h) { LogRel (("Display::handleDisplayResize(): uScreenId = %d, pvVRAM=%p " "w=%d h=%d bpp=%d cbLine=0x%X\n", uScreenId, pvVRAM, w, h, bpp, cbLine)); /* If there is no framebuffer, this call is not interesting. */ if ( uScreenId >= mcMonitors || maFramebuffers[uScreenId].pFramebuffer.isNull()) { return VINF_SUCCESS; } mLastAddress = pvVRAM; mLastBytesPerLine = cbLine; mLastBitsPerPixel = bpp, mLastWidth = w; mLastHeight = h; ULONG pixelFormat; switch (bpp) { case 32: case 24: case 16: pixelFormat = FramebufferPixelFormat_FOURCC_RGB; break; default: pixelFormat = FramebufferPixelFormat_PixelFormatOpaque; bpp = cbLine = 0; break; } /* Atomically set the resize status before calling the framebuffer. The new InProgress status will * disable access to the VGA device by the EMT thread. */ bool f = ASMAtomicCmpXchgU32 (&maFramebuffers[uScreenId].u32ResizeStatus, ResizeStatus_InProgress, ResizeStatus_Void); AssertReleaseMsg(f, ("f = %d\n", f));NOREF(f); /* The framebuffer is locked in the state. * The lock is kept, because the framebuffer is in undefined state. */ maFramebuffers[uScreenId].pFramebuffer->Lock(); int rc = callFramebufferResize (maFramebuffers[uScreenId].pFramebuffer, uScreenId, pixelFormat, pvVRAM, bpp, cbLine, w, h); if (rc == VINF_VGA_RESIZE_IN_PROGRESS) { /* Immediately return to the caller. ResizeCompleted will be called back by the * GUI thread. The ResizeCompleted callback will change the resize status from * InProgress to UpdateDisplayData. The latter status will be checked by the * display timer callback on EMT and all required adjustments will be done there. */ return rc; } /* Set the status so the 'handleResizeCompleted' would work. */ f = ASMAtomicCmpXchgU32 (&maFramebuffers[uScreenId].u32ResizeStatus, ResizeStatus_UpdateDisplayData, ResizeStatus_InProgress); AssertRelease(f);NOREF(f); /* The method also unlocks the framebuffer. */ handleResizeCompletedEMT(); return VINF_SUCCESS; } /** * Framebuffer has been resized. * Read the new display data and unlock the framebuffer. * * @thread EMT */ void Display::handleResizeCompletedEMT (void) { LogFlowFunc(("\n")); unsigned uScreenId; for (uScreenId = 0; uScreenId < mcMonitors; uScreenId++) { DISPLAYFBINFO *pFBInfo = &maFramebuffers[uScreenId]; /* Try to into non resizing state. */ bool f = ASMAtomicCmpXchgU32 (&pFBInfo->u32ResizeStatus, ResizeStatus_Void, ResizeStatus_UpdateDisplayData); if (f == false) { /* This is not the display that has completed resizing. */ continue; } if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN && !pFBInfo->pFramebuffer.isNull()) { /* Primary framebuffer has completed the resize. Update the connector data for VGA device. */ updateDisplayData(); /* Check the framebuffer pixel format to setup the rendering in VGA device. */ BOOL usesGuestVRAM = FALSE; pFBInfo->pFramebuffer->COMGETTER(UsesGuestVRAM) (&usesGuestVRAM); pFBInfo->fDefaultFormat = (usesGuestVRAM == FALSE); mpDrv->pUpPort->pfnSetRenderVRAM (mpDrv->pUpPort, pFBInfo->fDefaultFormat); } #ifdef DEBUG_sunlover if (!stam) { /* protect mpVM */ Console::SafeVMPtr pVM (mParent); AssertComRC (pVM.rc()); STAM_REG(pVM, &StatDisplayRefresh, STAMTYPE_PROFILE, "/PROF/Display/Refresh", STAMUNIT_TICKS_PER_CALL, "Time spent in EMT for display updates."); stam = 1; } #endif /* DEBUG_sunlover */ /* Inform VRDP server about the change of display parameters. */ LogFlowFunc (("Calling VRDP\n")); mParent->consoleVRDPServer()->SendResize(); if (!pFBInfo->pFramebuffer.isNull()) { /* Unlock framebuffer after evrything is done. */ pFBInfo->pFramebuffer->Unlock(); } } } static void checkCoordBounds (int *px, int *py, int *pw, int *ph, int cx, int cy) { /* Correct negative x and y coordinates. */ if (*px < 0) { *px += *pw; /* Compute xRight which is also the new width. */ *pw = (*px < 0)? 0: *px; *px = 0; } if (*py < 0) { *py += *ph; /* Compute xBottom, which is also the new height. */ *ph = (*py < 0)? 0: *py; *py = 0; } /* Also check if coords are greater than the display resolution. */ if (*px + *pw > cx) { *pw = cx > *px? cx - *px: 0; } if (*py + *ph > cy) { *ph = cy > *py? cy - *py: 0; } } unsigned mapCoordsToScreen(DISPLAYFBINFO *pInfos, unsigned cInfos, int *px, int *py, int *pw, int *ph) { DISPLAYFBINFO *pInfo = pInfos; unsigned uScreenId; LogSunlover (("mapCoordsToScreen: %d,%d %dx%d\n", *px, *py, *pw, *ph)); for (uScreenId = 0; uScreenId < cInfos; uScreenId++, pInfo++) { LogSunlover ((" [%d] %d,%d %dx%d\n", uScreenId, pInfo->xOrigin, pInfo->yOrigin, pInfo->w, pInfo->h)); if ( (pInfo->xOrigin <= *px && *px < pInfo->xOrigin + (int)pInfo->w) && (pInfo->yOrigin <= *py && *py < pInfo->yOrigin + (int)pInfo->h)) { /* The rectangle belongs to the screen. Correct coordinates. */ *px -= pInfo->xOrigin; *py -= pInfo->yOrigin; LogSunlover ((" -> %d,%d", *px, *py)); break; } } if (uScreenId == cInfos) { /* Map to primary screen. */ uScreenId = 0; } LogSunlover ((" scr %d\n", uScreenId)); return uScreenId; } /** * Handles display update event. * * @param x Update area x coordinate * @param y Update area y coordinate * @param w Update area width * @param h Update area height * * @thread EMT */ void Display::handleDisplayUpdate (int x, int y, int w, int h) { #ifdef DEBUG_sunlover LogFlowFunc (("%d,%d %dx%d (%d,%d)\n", x, y, w, h, mpDrv->Connector.cx, mpDrv->Connector.cy)); #endif /* DEBUG_sunlover */ unsigned uScreenId = mapCoordsToScreen(maFramebuffers, mcMonitors, &x, &y, &w, &h); #ifdef DEBUG_sunlover LogFlowFunc (("%d,%d %dx%d (checked)\n", x, y, w, h)); #endif /* DEBUG_sunlover */ IFramebuffer *pFramebuffer = maFramebuffers[uScreenId].pFramebuffer; // if there is no framebuffer, this call is not interesting if (pFramebuffer == NULL) return; pFramebuffer->Lock(); /* special processing for the internal framebuffer */ if (mInternalFramebuffer) { pFramebuffer->Unlock(); } else { /* callback into the framebuffer to notify it */ BOOL finished = FALSE; RTSemEventMultiReset(mUpdateSem); checkCoordBounds (&x, &y, &w, &h, mpDrv->Connector.cx, mpDrv->Connector.cy); if (w == 0 || h == 0) { /* Nothing to be updated. */ finished = TRUE; } else { pFramebuffer->NotifyUpdate(x, y, w, h, &finished); } if (!finished) { /* * the framebuffer needs more time to process * the event so we have to halt the VM until it's done */ pFramebuffer->Unlock(); RTSemEventMultiWait(mUpdateSem, RT_INDEFINITE_WAIT); } else { pFramebuffer->Unlock(); } if (!mfVideoAccelEnabled) { /* When VBVA is enabled, the VRDP server is informed in the VideoAccelFlush. * Inform the server here only if VBVA is disabled. */ if (maFramebuffers[uScreenId].u32ResizeStatus == ResizeStatus_Void) { mParent->consoleVRDPServer()->SendUpdateBitmap(uScreenId, x, y, w, h); } } } return; } typedef struct _VBVADIRTYREGION { /* Copies of object's pointers used by vbvaRgn functions. */ DISPLAYFBINFO *paFramebuffers; unsigned cMonitors; Display *pDisplay; PPDMIDISPLAYPORT pPort; } VBVADIRTYREGION; static void vbvaRgnInit (VBVADIRTYREGION *prgn, DISPLAYFBINFO *paFramebuffers, unsigned cMonitors, Display *pd, PPDMIDISPLAYPORT pp) { prgn->paFramebuffers = paFramebuffers; prgn->cMonitors = cMonitors; prgn->pDisplay = pd; prgn->pPort = pp; unsigned uScreenId; for (uScreenId = 0; uScreenId < cMonitors; uScreenId++) { DISPLAYFBINFO *pFBInfo = &prgn->paFramebuffers[uScreenId]; memset (&pFBInfo->dirtyRect, 0, sizeof (pFBInfo->dirtyRect)); } } static void vbvaRgnDirtyRect (VBVADIRTYREGION *prgn, unsigned uScreenId, VBVACMDHDR *phdr) { LogSunlover (("x = %d, y = %d, w = %d, h = %d\n", phdr->x, phdr->y, phdr->w, phdr->h)); /* * Here update rectangles are accumulated to form an update area. * @todo * Now the simpliest method is used which builds one rectangle that * includes all update areas. A bit more advanced method can be * employed here. The method should be fast however. */ if (phdr->w == 0 || phdr->h == 0) { /* Empty rectangle. */ return; } int32_t xRight = phdr->x + phdr->w; int32_t yBottom = phdr->y + phdr->h; DISPLAYFBINFO *pFBInfo = &prgn->paFramebuffers[uScreenId]; if (pFBInfo->dirtyRect.xRight == 0) { /* This is the first rectangle to be added. */ pFBInfo->dirtyRect.xLeft = phdr->x; pFBInfo->dirtyRect.yTop = phdr->y; pFBInfo->dirtyRect.xRight = xRight; pFBInfo->dirtyRect.yBottom = yBottom; } else { /* Adjust region coordinates. */ if (pFBInfo->dirtyRect.xLeft > phdr->x) { pFBInfo->dirtyRect.xLeft = phdr->x; } if (pFBInfo->dirtyRect.yTop > phdr->y) { pFBInfo->dirtyRect.yTop = phdr->y; } if (pFBInfo->dirtyRect.xRight < xRight) { pFBInfo->dirtyRect.xRight = xRight; } if (pFBInfo->dirtyRect.yBottom < yBottom) { pFBInfo->dirtyRect.yBottom = yBottom; } } if (pFBInfo->fDefaultFormat) { //@todo pfnUpdateDisplayRect must take the vram offset parameter for the framebuffer prgn->pPort->pfnUpdateDisplayRect (prgn->pPort, phdr->x, phdr->y, phdr->w, phdr->h); prgn->pDisplay->handleDisplayUpdate (phdr->x, phdr->y, phdr->w, phdr->h); } return; } static void vbvaRgnUpdateFramebuffer (VBVADIRTYREGION *prgn, unsigned uScreenId) { DISPLAYFBINFO *pFBInfo = &prgn->paFramebuffers[uScreenId]; uint32_t w = pFBInfo->dirtyRect.xRight - pFBInfo->dirtyRect.xLeft; uint32_t h = pFBInfo->dirtyRect.yBottom - pFBInfo->dirtyRect.yTop; if (!pFBInfo->fDefaultFormat && pFBInfo->pFramebuffer && w != 0 && h != 0) { //@todo pfnUpdateDisplayRect must take the vram offset parameter for the framebuffer prgn->pPort->pfnUpdateDisplayRect (prgn->pPort, pFBInfo->dirtyRect.xLeft, pFBInfo->dirtyRect.yTop, w, h); prgn->pDisplay->handleDisplayUpdate (pFBInfo->dirtyRect.xLeft, pFBInfo->dirtyRect.yTop, w, h); } } static void vbvaSetMemoryFlags (VBVAMEMORY *pVbvaMemory, bool fVideoAccelEnabled, bool fVideoAccelVRDP, uint32_t fu32SupportedOrders, DISPLAYFBINFO *paFBInfos, unsigned cFBInfos) { if (pVbvaMemory) { /* This called only on changes in mode. So reset VRDP always. */ uint32_t fu32Flags = VBVA_F_MODE_VRDP_RESET; if (fVideoAccelEnabled) { fu32Flags |= VBVA_F_MODE_ENABLED; if (fVideoAccelVRDP) { fu32Flags |= VBVA_F_MODE_VRDP | VBVA_F_MODE_VRDP_ORDER_MASK; pVbvaMemory->fu32SupportedOrders = fu32SupportedOrders; } } pVbvaMemory->fu32ModeFlags = fu32Flags; } unsigned uScreenId; for (uScreenId = 0; uScreenId < cFBInfos; uScreenId++) { if (paFBInfos[uScreenId].pHostEvents) { paFBInfos[uScreenId].pHostEvents->fu32Events |= VBOX_VIDEO_INFO_HOST_EVENTS_F_VRDP_RESET; } } } bool Display::VideoAccelAllowed (void) { return true; } /** * @thread EMT */ int Display::VideoAccelEnable (bool fEnable, VBVAMEMORY *pVbvaMemory) { int rc = VINF_SUCCESS; /* Called each time the guest wants to use acceleration, * or when the VGA device disables acceleration, * or when restoring the saved state with accel enabled. * * VGA device disables acceleration on each video mode change * and on reset. * * Guest enabled acceleration at will. And it has to enable * acceleration after a mode change. */ LogFlowFunc (("mfVideoAccelEnabled = %d, fEnable = %d, pVbvaMemory = %p\n", mfVideoAccelEnabled, fEnable, pVbvaMemory)); /* Strictly check parameters. Callers must not pass anything in the case. */ Assert((fEnable && pVbvaMemory) || (!fEnable && pVbvaMemory == NULL)); if (!VideoAccelAllowed ()) { return VERR_NOT_SUPPORTED; } /* * Verify that the VM is in running state. If it is not, * then this must be postponed until it goes to running. */ if (!mfMachineRunning) { Assert (!mfVideoAccelEnabled); LogFlowFunc (("Machine is not yet running.\n")); if (fEnable) { mfPendingVideoAccelEnable = fEnable; mpPendingVbvaMemory = pVbvaMemory; } return rc; } /* Check that current status is not being changed */ if (mfVideoAccelEnabled == fEnable) { return rc; } if (mfVideoAccelEnabled) { /* Process any pending orders and empty the VBVA ring buffer. */ VideoAccelFlush (); } if (!fEnable && mpVbvaMemory) { mpVbvaMemory->fu32ModeFlags &= ~VBVA_F_MODE_ENABLED; } /* Safety precaution. There is no more VBVA until everything is setup! */ mpVbvaMemory = NULL; mfVideoAccelEnabled = false; /* Update entire display. */ if (maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].u32ResizeStatus == ResizeStatus_Void) { mpDrv->pUpPort->pfnUpdateDisplayAll(mpDrv->pUpPort); } /* Everything OK. VBVA status can be changed. */ /* Notify the VMMDev, which saves VBVA status in the saved state, * and needs to know current status. */ PPDMIVMMDEVPORT pVMMDevPort = mParent->getVMMDev()->getVMMDevPort (); if (pVMMDevPort) { pVMMDevPort->pfnVBVAChange (pVMMDevPort, fEnable); } if (fEnable) { mpVbvaMemory = pVbvaMemory; mfVideoAccelEnabled = true; /* Initialize the hardware memory. */ vbvaSetMemoryFlags (mpVbvaMemory, mfVideoAccelEnabled, mfVideoAccelVRDP, mfu32SupportedOrders, maFramebuffers, mcMonitors); mpVbvaMemory->off32Data = 0; mpVbvaMemory->off32Free = 0; memset (mpVbvaMemory->aRecords, 0, sizeof (mpVbvaMemory->aRecords)); mpVbvaMemory->indexRecordFirst = 0; mpVbvaMemory->indexRecordFree = 0; LogRel(("VBVA: Enabled.\n")); } else { LogRel(("VBVA: Disabled.\n")); } LogFlowFunc (("VideoAccelEnable: rc = %Vrc.\n", rc)); return rc; } #ifdef VBOX_VRDP /* Called always by one VRDP server thread. Can be thread-unsafe. */ void Display::VideoAccelVRDP (bool fEnable) { int c = fEnable? ASMAtomicIncS32 (&mcVideoAccelVRDPRefs): ASMAtomicDecS32 (&mcVideoAccelVRDPRefs); Assert (c >= 0); if (c == 0) { /* The last client has disconnected, and the accel can be * disabled. */ Assert (fEnable == false); mfVideoAccelVRDP = false; mfu32SupportedOrders = 0; vbvaSetMemoryFlags (mpVbvaMemory, mfVideoAccelEnabled, mfVideoAccelVRDP, mfu32SupportedOrders, maFramebuffers, mcMonitors); LogRel(("VBVA: VRDP acceleration has been disabled.\n")); } else if ( c == 1 && !mfVideoAccelVRDP) { /* The first client has connected. Enable the accel. */ Assert (fEnable == true); mfVideoAccelVRDP = true; /* Supporting all orders. */ mfu32SupportedOrders = ~0; vbvaSetMemoryFlags (mpVbvaMemory, mfVideoAccelEnabled, mfVideoAccelVRDP, mfu32SupportedOrders, maFramebuffers, mcMonitors); LogRel(("VBVA: VRDP acceleration has been requested.\n")); } else { /* A client is connected or disconnected but there is no change in the * accel state. It remains enabled. */ Assert (mfVideoAccelVRDP == true); } } #endif /* VBOX_VRDP */ static bool vbvaVerifyRingBuffer (VBVAMEMORY *pVbvaMemory) { return true; } static void vbvaFetchBytes (VBVAMEMORY *pVbvaMemory, uint8_t *pu8Dst, uint32_t cbDst) { if (cbDst >= VBVA_RING_BUFFER_SIZE) { AssertMsgFailed (("cbDst = 0x%08X, ring buffer size 0x%08X", cbDst, VBVA_RING_BUFFER_SIZE)); return; } uint32_t u32BytesTillBoundary = VBVA_RING_BUFFER_SIZE - pVbvaMemory->off32Data; uint8_t *src = &pVbvaMemory->au8RingBuffer[pVbvaMemory->off32Data]; int32_t i32Diff = cbDst - u32BytesTillBoundary; if (i32Diff <= 0) { /* Chunk will not cross buffer boundary. */ memcpy (pu8Dst, src, cbDst); } else { /* Chunk crosses buffer boundary. */ memcpy (pu8Dst, src, u32BytesTillBoundary); memcpy (pu8Dst + u32BytesTillBoundary, &pVbvaMemory->au8RingBuffer[0], i32Diff); } /* Advance data offset. */ pVbvaMemory->off32Data = (pVbvaMemory->off32Data + cbDst) % VBVA_RING_BUFFER_SIZE; return; } static bool vbvaPartialRead (uint8_t **ppu8, uint32_t *pcb, uint32_t cbRecord, VBVAMEMORY *pVbvaMemory) { uint8_t *pu8New; LogFlow(("MAIN::DisplayImpl::vbvaPartialRead: p = %p, cb = %d, cbRecord 0x%08X\n", *ppu8, *pcb, cbRecord)); if (*ppu8) { Assert (*pcb); pu8New = (uint8_t *)RTMemRealloc (*ppu8, cbRecord); } else { Assert (!*pcb); pu8New = (uint8_t *)RTMemAlloc (cbRecord); } if (!pu8New) { /* Memory allocation failed, fail the function. */ Log(("MAIN::vbvaPartialRead: failed to (re)alocate memory for partial record!!! cbRecord 0x%08X\n", cbRecord)); if (*ppu8) { RTMemFree (*ppu8); } *ppu8 = NULL; *pcb = 0; return false; } /* Fetch data from the ring buffer. */ vbvaFetchBytes (pVbvaMemory, pu8New + *pcb, cbRecord - *pcb); *ppu8 = pu8New; *pcb = cbRecord; return true; } /* For contiguous chunks just return the address in the buffer. * For crossing boundary - allocate a buffer from heap. */ bool Display::vbvaFetchCmd (VBVACMDHDR **ppHdr, uint32_t *pcbCmd) { uint32_t indexRecordFirst = mpVbvaMemory->indexRecordFirst; uint32_t indexRecordFree = mpVbvaMemory->indexRecordFree; #ifdef DEBUG_sunlover LogFlowFunc (("first = %d, free = %d\n", indexRecordFirst, indexRecordFree)); #endif /* DEBUG_sunlover */ if (!vbvaVerifyRingBuffer (mpVbvaMemory)) { return false; } if (indexRecordFirst == indexRecordFree) { /* No records to process. Return without assigning output variables. */ return true; } VBVARECORD *pRecord = &mpVbvaMemory->aRecords[indexRecordFirst]; #ifdef DEBUG_sunlover LogFlowFunc (("cbRecord = 0x%08X\n", pRecord->cbRecord)); #endif /* DEBUG_sunlover */ uint32_t cbRecord = pRecord->cbRecord & ~VBVA_F_RECORD_PARTIAL; if (mcbVbvaPartial) { /* There is a partial read in process. Continue with it. */ Assert (mpu8VbvaPartial); LogFlowFunc (("continue partial record mcbVbvaPartial = %d cbRecord 0x%08X, first = %d, free = %d\n", mcbVbvaPartial, pRecord->cbRecord, indexRecordFirst, indexRecordFree)); if (cbRecord > mcbVbvaPartial) { /* New data has been added to the record. */ if (!vbvaPartialRead (&mpu8VbvaPartial, &mcbVbvaPartial, cbRecord, mpVbvaMemory)) { return false; } } if (!(pRecord->cbRecord & VBVA_F_RECORD_PARTIAL)) { /* The record is completed by guest. Return it to the caller. */ *ppHdr = (VBVACMDHDR *)mpu8VbvaPartial; *pcbCmd = mcbVbvaPartial; mpu8VbvaPartial = NULL; mcbVbvaPartial = 0; /* Advance the record index. */ mpVbvaMemory->indexRecordFirst = (indexRecordFirst + 1) % VBVA_MAX_RECORDS; #ifdef DEBUG_sunlover LogFlowFunc (("partial done ok, data = %d, free = %d\n", mpVbvaMemory->off32Data, mpVbvaMemory->off32Free)); #endif /* DEBUG_sunlover */ } return true; } /* A new record need to be processed. */ if (pRecord->cbRecord & VBVA_F_RECORD_PARTIAL) { /* Current record is being written by guest. '=' is important here. */ if (cbRecord >= VBVA_RING_BUFFER_SIZE - VBVA_RING_BUFFER_THRESHOLD) { /* Partial read must be started. */ if (!vbvaPartialRead (&mpu8VbvaPartial, &mcbVbvaPartial, cbRecord, mpVbvaMemory)) { return false; } LogFlowFunc (("started partial record mcbVbvaPartial = 0x%08X cbRecord 0x%08X, first = %d, free = %d\n", mcbVbvaPartial, pRecord->cbRecord, indexRecordFirst, indexRecordFree)); } return true; } /* Current record is complete. If it is not empty, process it. */ if (cbRecord) { /* The size of largest contiguos chunk in the ring biffer. */ uint32_t u32BytesTillBoundary = VBVA_RING_BUFFER_SIZE - mpVbvaMemory->off32Data; /* The ring buffer pointer. */ uint8_t *au8RingBuffer = &mpVbvaMemory->au8RingBuffer[0]; /* The pointer to data in the ring buffer. */ uint8_t *src = &au8RingBuffer[mpVbvaMemory->off32Data]; /* Fetch or point the data. */ if (u32BytesTillBoundary >= cbRecord) { /* The command does not cross buffer boundary. Return address in the buffer. */ *ppHdr = (VBVACMDHDR *)src; /* Advance data offset. */ mpVbvaMemory->off32Data = (mpVbvaMemory->off32Data + cbRecord) % VBVA_RING_BUFFER_SIZE; } else { /* The command crosses buffer boundary. Rare case, so not optimized. */ uint8_t *dst = (uint8_t *)RTMemAlloc (cbRecord); if (!dst) { LogFlowFunc (("could not allocate %d bytes from heap!!!\n", cbRecord)); mpVbvaMemory->off32Data = (mpVbvaMemory->off32Data + cbRecord) % VBVA_RING_BUFFER_SIZE; return false; } vbvaFetchBytes (mpVbvaMemory, dst, cbRecord); *ppHdr = (VBVACMDHDR *)dst; #ifdef DEBUG_sunlover LogFlowFunc (("Allocated from heap %p\n", dst)); #endif /* DEBUG_sunlover */ } } *pcbCmd = cbRecord; /* Advance the record index. */ mpVbvaMemory->indexRecordFirst = (indexRecordFirst + 1) % VBVA_MAX_RECORDS; #ifdef DEBUG_sunlover LogFlowFunc (("done ok, data = %d, free = %d\n", mpVbvaMemory->off32Data, mpVbvaMemory->off32Free)); #endif /* DEBUG_sunlover */ return true; } void Display::vbvaReleaseCmd (VBVACMDHDR *pHdr, int32_t cbCmd) { uint8_t *au8RingBuffer = mpVbvaMemory->au8RingBuffer; if ( (uint8_t *)pHdr >= au8RingBuffer && (uint8_t *)pHdr < &au8RingBuffer[VBVA_RING_BUFFER_SIZE]) { /* The pointer is inside ring buffer. Must be continuous chunk. */ Assert (VBVA_RING_BUFFER_SIZE - ((uint8_t *)pHdr - au8RingBuffer) >= cbCmd); /* Do nothing. */ Assert (!mpu8VbvaPartial && mcbVbvaPartial == 0); } else { /* The pointer is outside. It is then an allocated copy. */ #ifdef DEBUG_sunlover LogFlowFunc (("Free heap %p\n", pHdr)); #endif /* DEBUG_sunlover */ if ((uint8_t *)pHdr == mpu8VbvaPartial) { mpu8VbvaPartial = NULL; mcbVbvaPartial = 0; } else { Assert (!mpu8VbvaPartial && mcbVbvaPartial == 0); } RTMemFree (pHdr); } return; } /** * Called regularly on the DisplayRefresh timer. * Also on behalf of guest, when the ring buffer is full. * * @thread EMT */ void Display::VideoAccelFlush (void) { #ifdef DEBUG_sunlover_2 LogFlowFunc (("mfVideoAccelEnabled = %d\n", mfVideoAccelEnabled)); #endif /* DEBUG_sunlover_2 */ if (!mfVideoAccelEnabled) { Log(("Display::VideoAccelFlush: called with disabled VBVA!!! Ignoring.\n")); return; } /* Here VBVA is enabled and we have the accelerator memory pointer. */ Assert(mpVbvaMemory); #ifdef DEBUG_sunlover_2 LogFlowFunc (("indexRecordFirst = %d, indexRecordFree = %d, off32Data = %d, off32Free = %d\n", mpVbvaMemory->indexRecordFirst, mpVbvaMemory->indexRecordFree, mpVbvaMemory->off32Data, mpVbvaMemory->off32Free)); #endif /* DEBUG_sunlover_2 */ /* Quick check for "nothing to update" case. */ if (mpVbvaMemory->indexRecordFirst == mpVbvaMemory->indexRecordFree) { return; } /* Process the ring buffer */ unsigned uScreenId; for (uScreenId = 0; uScreenId < mcMonitors; uScreenId++) { if (!maFramebuffers[uScreenId].pFramebuffer.isNull()) { maFramebuffers[uScreenId].pFramebuffer->Lock (); } } /* Initialize dirty rectangles accumulator. */ VBVADIRTYREGION rgn; vbvaRgnInit (&rgn, maFramebuffers, mcMonitors, this, mpDrv->pUpPort); for (;;) { VBVACMDHDR *phdr = NULL; uint32_t cbCmd = ~0; /* Fetch the command data. */ if (!vbvaFetchCmd (&phdr, &cbCmd)) { Log(("Display::VideoAccelFlush: unable to fetch command. off32Data = %d, off32Free = %d. Disabling VBVA!!!\n", mpVbvaMemory->off32Data, mpVbvaMemory->off32Free)); /* Disable VBVA on those processing errors. */ VideoAccelEnable (false, NULL); break; } if (cbCmd == uint32_t(~0)) { /* No more commands yet in the queue. */ break; } if (cbCmd != 0) { #ifdef DEBUG_sunlover LogFlowFunc (("hdr: cbCmd = %d, x=%d, y=%d, w=%d, h=%d\n", cbCmd, phdr->x, phdr->y, phdr->w, phdr->h)); #endif /* DEBUG_sunlover */ VBVACMDHDR hdrSaved = *phdr; int x = phdr->x; int y = phdr->y; int w = phdr->w; int h = phdr->h; uScreenId = mapCoordsToScreen(maFramebuffers, mcMonitors, &x, &y, &w, &h); phdr->x = (int16_t)x; phdr->y = (int16_t)y; phdr->w = (uint16_t)w; phdr->h = (uint16_t)h; DISPLAYFBINFO *pFBInfo = &maFramebuffers[uScreenId]; if (pFBInfo->u32ResizeStatus == ResizeStatus_Void) { /* Handle the command. * * Guest is responsible for updating the guest video memory. * The Windows guest does all drawing using Eng*. * * For local output, only dirty rectangle information is used * to update changed areas. * * Dirty rectangles are accumulated to exclude overlapping updates and * group small updates to a larger one. */ /* Accumulate the update. */ vbvaRgnDirtyRect (&rgn, uScreenId, phdr); /* Forward the command to VRDP server. */ mParent->consoleVRDPServer()->SendUpdate (uScreenId, phdr, cbCmd); *phdr = hdrSaved; } } vbvaReleaseCmd (phdr, cbCmd); } for (uScreenId = 0; uScreenId < mcMonitors; uScreenId++) { if (!maFramebuffers[uScreenId].pFramebuffer.isNull()) { maFramebuffers[uScreenId].pFramebuffer->Unlock (); } if (maFramebuffers[uScreenId].u32ResizeStatus == ResizeStatus_Void) { /* Draw the framebuffer. */ vbvaRgnUpdateFramebuffer (&rgn, uScreenId); } } } // IDisplay properties ///////////////////////////////////////////////////////////////////////////// /** * Returns the current display width in pixel * * @returns COM status code * @param width Address of result variable. */ STDMETHODIMP Display::COMGETTER(Width) (ULONG *width) { if (!width) return E_POINTER; AutoLock alock (this); CHECK_READY(); CHECK_CONSOLE_DRV (mpDrv); *width = mpDrv->Connector.cx; return S_OK; } /** * Returns the current display height in pixel * * @returns COM status code * @param height Address of result variable. */ STDMETHODIMP Display::COMGETTER(Height) (ULONG *height) { if (!height) return E_POINTER; AutoLock alock (this); CHECK_READY(); CHECK_CONSOLE_DRV (mpDrv); *height = mpDrv->Connector.cy; return S_OK; } /** * Returns the current display color depth in bits * * @returns COM status code * @param bitsPerPixel Address of result variable. */ STDMETHODIMP Display::COMGETTER(BitsPerPixel) (ULONG *bitsPerPixel) { if (!bitsPerPixel) return E_INVALIDARG; AutoLock alock (this); CHECK_READY(); CHECK_CONSOLE_DRV (mpDrv); uint32_t cBits = 0; int rc = mpDrv->pUpPort->pfnQueryColorDepth(mpDrv->pUpPort, &cBits); AssertRC(rc); *bitsPerPixel = cBits; return S_OK; } // IDisplay methods ///////////////////////////////////////////////////////////////////////////// STDMETHODIMP Display::SetupInternalFramebuffer (ULONG depth) { LogFlowFunc (("\n")); AutoLock lock (this); CHECK_READY(); /* * Create an internal framebuffer only if depth is not zero. Otherwise, we * reset back to the "black hole" state as it was at Display construction. */ ComPtr frameBuf; if (depth) { ComObjPtr internal; internal.createObject(); internal->init (640, 480, depth); frameBuf = internal; // query interface } Console::SafeVMPtrQuiet pVM (mParent); if (pVM.isOk()) { /* Must leave the lock here because the changeFramebuffer will also obtain it. */ lock.leave (); /* send request to the EMT thread */ PVMREQ pReq = NULL; int vrc = VMR3ReqCall (pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT) changeFramebuffer, 3, this, static_cast (frameBuf), true /* aInternal */, VBOX_VIDEO_PRIMARY_SCREEN); if (VBOX_SUCCESS (vrc)) vrc = pReq->iStatus; VMR3ReqFree (pReq); lock.enter (); ComAssertRCRet (vrc, E_FAIL); } else { /* No VM is created (VM is powered off), do a direct call */ int vrc = changeFramebuffer (this, frameBuf, true /* aInternal */, VBOX_VIDEO_PRIMARY_SCREEN); ComAssertRCRet (vrc, E_FAIL); } return S_OK; } STDMETHODIMP Display::LockFramebuffer (BYTE **address) { if (!address) return E_POINTER; AutoLock lock(this); CHECK_READY(); /* only allowed for internal framebuffers */ if (mInternalFramebuffer && !mFramebufferOpened && !maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer.isNull()) { CHECK_CONSOLE_DRV (mpDrv); maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer->Lock(); mFramebufferOpened = true; *address = mpDrv->Connector.pu8Data; return S_OK; } return setError (E_FAIL, tr ("Framebuffer locking is allowed only for the internal framebuffer")); } STDMETHODIMP Display::UnlockFramebuffer() { AutoLock lock(this); CHECK_READY(); if (mFramebufferOpened) { CHECK_CONSOLE_DRV (mpDrv); maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer->Unlock(); mFramebufferOpened = false; return S_OK; } return setError (E_FAIL, tr ("Framebuffer locking is allowed only for the internal framebuffer")); } STDMETHODIMP Display::RegisterExternalFramebuffer (IFramebuffer *frameBuf) { LogFlowFunc (("\n")); if (!frameBuf) return E_POINTER; AutoLock lock (this); CHECK_READY(); Console::SafeVMPtrQuiet pVM (mParent); if (pVM.isOk()) { /* Must leave the lock here because the changeFramebuffer will also obtain it. */ lock.leave (); /* send request to the EMT thread */ PVMREQ pReq = NULL; int vrc = VMR3ReqCall (pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT) changeFramebuffer, 3, this, frameBuf, false /* aInternal */, VBOX_VIDEO_PRIMARY_SCREEN); if (VBOX_SUCCESS (vrc)) vrc = pReq->iStatus; VMR3ReqFree (pReq); lock.enter (); ComAssertRCRet (vrc, E_FAIL); } else { /* No VM is created (VM is powered off), do a direct call */ int vrc = changeFramebuffer (this, frameBuf, false /* aInternal */, VBOX_VIDEO_PRIMARY_SCREEN); ComAssertRCRet (vrc, E_FAIL); } return S_OK; } STDMETHODIMP Display::SetFramebuffer (ULONG aScreenId, IFramebuffer *aFramebuffer) { LogFlowFunc (("\n")); if (!aFramebuffer) return E_POINTER; AutoLock lock (this); CHECK_READY(); Console::SafeVMPtrQuiet pVM (mParent); if (pVM.isOk()) { /* Must leave the lock here because the changeFramebuffer will also obtain it. */ lock.leave (); /* send request to the EMT thread */ PVMREQ pReq = NULL; int vrc = VMR3ReqCall (pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT) changeFramebuffer, 3, this, aFramebuffer, false /* aInternal */, aScreenId); if (VBOX_SUCCESS (vrc)) vrc = pReq->iStatus; VMR3ReqFree (pReq); lock.enter (); ComAssertRCRet (vrc, E_FAIL); } else { /* No VM is created (VM is powered off), do a direct call */ int vrc = changeFramebuffer (this, aFramebuffer, false /* aInternal */, aScreenId); ComAssertRCRet (vrc, E_FAIL); } return S_OK; } STDMETHODIMP Display::GetFramebuffer (ULONG aScreenId, IFramebuffer **aFramebuffer, LONG *aXOrigin, LONG *aYOrigin) { LogFlowFunc (("aScreenId = %d\n", aScreenId)); if (!aFramebuffer) return E_POINTER; AutoLock lock (this); CHECK_READY(); /* @todo this should be actually done on EMT. */ DISPLAYFBINFO *pFBInfo = &maFramebuffers[aScreenId]; *aFramebuffer = pFBInfo->pFramebuffer; if (*aFramebuffer) (*aFramebuffer)->AddRef (); if (aXOrigin) *aXOrigin = pFBInfo->xOrigin; if (aYOrigin) *aYOrigin = pFBInfo->yOrigin; return S_OK; } STDMETHODIMP Display::SetVideoModeHint(ULONG aWidth, ULONG aHeight, ULONG aBitsPerPixel, ULONG aDisplay) { AutoLock lock(this); CHECK_READY(); CHECK_CONSOLE_DRV (mpDrv); /* * Do some rough checks for valid input */ ULONG width = aWidth; if (!width) width = mpDrv->Connector.cx; ULONG height = aHeight; if (!height) height = mpDrv->Connector.cy; ULONG bpp = aBitsPerPixel; if (!bpp) { uint32_t cBits = 0; int rc = mpDrv->pUpPort->pfnQueryColorDepth(mpDrv->pUpPort, &cBits); AssertRC(rc); bpp = cBits; } ULONG cMonitors; mParent->machine()->COMGETTER(MonitorCount)(&cMonitors); if (cMonitors == 0 && aDisplay > 0) return E_INVALIDARG; if (aDisplay >= cMonitors) return E_INVALIDARG; // sunlover 20070614: It is up to the guest to decide whether the hint is valid. // ULONG vramSize; // mParent->machine()->COMGETTER(VRAMSize)(&vramSize); // /* enough VRAM? */ // if ((width * height * (bpp / 8)) > (vramSize * 1024 * 1024)) // return setError(E_FAIL, tr("Not enough VRAM for the selected video mode")); /* Have to leave the lock because the pfnRequestDisplayChange will call EMT. */ lock.leave (); if (mParent->getVMMDev()) mParent->getVMMDev()->getVMMDevPort()-> pfnRequestDisplayChange (mParent->getVMMDev()->getVMMDevPort(), aWidth, aHeight, aBitsPerPixel, aDisplay); return S_OK; } STDMETHODIMP Display::SetSeamlessMode (BOOL enabled) { AutoLock lock(this); CHECK_READY(); /* Have to leave the lock because the pfnRequestSeamlessChange will call EMT. */ lock.leave (); if (mParent->getVMMDev()) mParent->getVMMDev()->getVMMDevPort()-> pfnRequestSeamlessChange (mParent->getVMMDev()->getVMMDevPort(), !!enabled); return S_OK; } STDMETHODIMP Display::TakeScreenShot (BYTE *address, ULONG width, ULONG height) { /// @todo (r=dmik) this function may take too long to complete if the VM // is doing something like saving state right now. Which, in case if it // is called on the GUI thread, will make it unresponsive. We should // check the machine state here (by enclosing the check and VMRequCall // within the Console lock to make it atomic). LogFlowFuncEnter(); LogFlowFunc (("address=%p, width=%d, height=%d\n", address, width, height)); if (!address) return E_POINTER; if (!width || !height) return E_INVALIDARG; AutoLock lock(this); CHECK_READY(); CHECK_CONSOLE_DRV (mpDrv); Console::SafeVMPtr pVM (mParent); CheckComRCReturnRC (pVM.rc()); HRESULT rc = S_OK; LogFlowFunc (("Sending SCREENSHOT request\n")); /* * First try use the graphics device features for making a snapshot. * This does not support streatching, is an optional feature (returns not supported). * * Note: It may cause a display resize. Watch out for deadlocks. */ int rcVBox = VERR_NOT_SUPPORTED; if ( mpDrv->Connector.cx == width && mpDrv->Connector.cy == height) { PVMREQ pReq; size_t cbData = RT_ALIGN_Z(width, 4) * 4 * height; rcVBox = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)mpDrv->pUpPort->pfnSnapshot, 6, mpDrv->pUpPort, address, cbData, NULL, NULL, NULL); if (VBOX_SUCCESS(rcVBox)) { rcVBox = pReq->iStatus; VMR3ReqFree(pReq); } } /* * If the function returns not supported, or if streaching is requested, * we'll have to do all the work ourselves using the framebuffer data. */ if (rcVBox == VERR_NOT_SUPPORTED || rcVBox == VERR_NOT_IMPLEMENTED) { /** @todo implement snapshot streching and generic snapshot fallback. */ rc = setError (E_NOTIMPL, tr ("This feature is not implemented")); } else if (VBOX_FAILURE(rcVBox)) rc = setError (E_FAIL, tr ("Could not take a screenshot (%Vrc)"), rcVBox); LogFlowFunc (("rc=%08X\n", rc)); LogFlowFuncLeave(); return rc; } STDMETHODIMP Display::DrawToScreen (BYTE *address, ULONG x, ULONG y, ULONG width, ULONG height) { /// @todo (r=dmik) this function may take too long to complete if the VM // is doing something like saving state right now. Which, in case if it // is called on the GUI thread, will make it unresponsive. We should // check the machine state here (by enclosing the check and VMRequCall // within the Console lock to make it atomic). LogFlowFuncEnter(); LogFlowFunc (("address=%p, x=%d, y=%d, width=%d, height=%d\n", address, x, y, width, height)); if (!address) return E_POINTER; if (!width || !height) return E_INVALIDARG; AutoLock lock(this); CHECK_READY(); CHECK_CONSOLE_DRV (mpDrv); Console::SafeVMPtr pVM (mParent); CheckComRCReturnRC (pVM.rc()); /* * Again we're lazy and make the graphics device do all the * dirty convertion work. */ PVMREQ pReq; int rcVBox = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)mpDrv->pUpPort->pfnDisplayBlt, 6, mpDrv->pUpPort, address, x, y, width, height); if (VBOX_SUCCESS(rcVBox)) { rcVBox = pReq->iStatus; VMR3ReqFree(pReq); } /* * If the function returns not supported, we'll have to do all the * work ourselves using the framebuffer. */ HRESULT rc = S_OK; if (rcVBox == VERR_NOT_SUPPORTED || rcVBox == VERR_NOT_IMPLEMENTED) { /** @todo implement generic fallback for screen blitting. */ rc = E_NOTIMPL; } else if (VBOX_FAILURE(rcVBox)) rc = setError (E_FAIL, tr ("Could not draw to the screen (%Vrc)"), rcVBox); //@todo // else // { // /* All ok. Redraw the screen. */ // handleDisplayUpdate (x, y, width, height); // } LogFlowFunc (("rc=%08X\n", rc)); LogFlowFuncLeave(); return rc; } /** * Does a full invalidation of the VM display and instructs the VM * to update it immediately. * * @returns COM status code */ STDMETHODIMP Display::InvalidateAndUpdate() { LogFlowFuncEnter(); AutoLock lock(this); CHECK_READY(); CHECK_CONSOLE_DRV (mpDrv); Console::SafeVMPtr pVM (mParent); CheckComRCReturnRC (pVM.rc()); HRESULT rc = S_OK; LogFlowFunc (("Sending DPYUPDATE request\n")); /* pdm.h says that this has to be called from the EMT thread */ PVMREQ pReq; int rcVBox = VMR3ReqCallVoid(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)mpDrv->pUpPort->pfnUpdateDisplayAll, 1, mpDrv->pUpPort); if (VBOX_SUCCESS(rcVBox)) VMR3ReqFree(pReq); if (VBOX_FAILURE(rcVBox)) rc = setError (E_FAIL, tr ("Could not invalidate and update the screen (%Vrc)"), rcVBox); LogFlowFunc (("rc=%08X\n", rc)); LogFlowFuncLeave(); return rc; } /** * Notification that the framebuffer has completed the * asynchronous resize processing * * @returns COM status code */ STDMETHODIMP Display::ResizeCompleted(ULONG aScreenId) { LogFlowFunc (("\n")); /// @todo (dmik) can we AutoLock alock (this); here? // do it when we switch this class to VirtualBoxBase_NEXT. // This will require general code review and may add some details. // In particular, we may want to check whether EMT is really waiting for // this notification, etc. It might be also good to obey the caller to make // sure this method is not called from more than one thread at a time // (and therefore don't use Display lock at all here to save some // milliseconds). CHECK_READY(); /* this is only valid for external framebuffers */ if (mInternalFramebuffer) return setError (E_FAIL, tr ("Resize completed notification is valid only " "for external framebuffers")); /* Set the flag indicating that the resize has completed and display data need to be updated. */ bool f = ASMAtomicCmpXchgU32 (&maFramebuffers[aScreenId].u32ResizeStatus, ResizeStatus_UpdateDisplayData, ResizeStatus_InProgress); AssertRelease(f);NOREF(f); return S_OK; } /** * Notification that the framebuffer has completed the * asynchronous update processing * * @returns COM status code */ STDMETHODIMP Display::UpdateCompleted() { LogFlowFunc (("\n")); /// @todo (dmik) can we AutoLock alock (this); here? // do it when we switch this class to VirtualBoxBase_NEXT. // Tthis will require general code review and may add some details. // In particular, we may want to check whether EMT is really waiting for // this notification, etc. It might be also good to obey the caller to make // sure this method is not called from more than one thread at a time // (and therefore don't use Display lock at all here to save some // milliseconds). CHECK_READY(); /* this is only valid for external framebuffers */ if (mInternalFramebuffer) return setError (E_FAIL, tr ("Resize completed notification is valid only " "for external framebuffers")); maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer->Lock(); /* signal our semaphore */ RTSemEventMultiSignal(mUpdateSem); maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer->Unlock(); return S_OK; } // private methods ///////////////////////////////////////////////////////////////////////////// /** * Helper to update the display information from the framebuffer. * * @param aCheckParams true to compare the parameters of the current framebuffer * and the new one and issue handleDisplayResize() * if they differ. * @thread EMT */ void Display::updateDisplayData (bool aCheckParams /* = false */) { /* the driver might not have been constructed yet */ if (!mpDrv) return; #if DEBUG /* * Sanity check. Note that this method may be called on EMT after Console * has started the power down procedure (but before our #drvDestruct() is * called, in which case pVM will aleady be NULL but mpDrv will not). Since * we don't really need pVM to proceed, we avoid this check in the release * build to save some ms (necessary to construct SafeVMPtrQuiet) in this * time-critical method. */ Console::SafeVMPtrQuiet pVM (mParent); if (pVM.isOk()) VM_ASSERT_EMT (pVM.raw()); #endif /* The method is only relevant to the primary framebuffer. */ IFramebuffer *pFramebuffer = maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer; if (pFramebuffer) { HRESULT rc; BYTE *address = 0; rc = pFramebuffer->COMGETTER(Address) (&address); AssertComRC (rc); ULONG bytesPerLine = 0; rc = pFramebuffer->COMGETTER(BytesPerLine) (&bytesPerLine); AssertComRC (rc); ULONG bitsPerPixel = 0; rc = pFramebuffer->COMGETTER(BitsPerPixel) (&bitsPerPixel); AssertComRC (rc); ULONG width = 0; rc = pFramebuffer->COMGETTER(Width) (&width); AssertComRC (rc); ULONG height = 0; rc = pFramebuffer->COMGETTER(Height) (&height); AssertComRC (rc); /* * Check current parameters with new ones and issue handleDisplayResize() * to let the new frame buffer adjust itself properly. Note that it will * result into a recursive updateDisplayData() call but with * aCheckOld = false. */ if (aCheckParams && (mLastAddress != address || mLastBytesPerLine != bytesPerLine || mLastBitsPerPixel != bitsPerPixel || mLastWidth != (int) width || mLastHeight != (int) height)) { handleDisplayResize (VBOX_VIDEO_PRIMARY_SCREEN, mLastBitsPerPixel, mLastAddress, mLastBytesPerLine, mLastWidth, mLastHeight); return; } mpDrv->Connector.pu8Data = (uint8_t *) address; mpDrv->Connector.cbScanline = bytesPerLine; mpDrv->Connector.cBits = bitsPerPixel; mpDrv->Connector.cx = width; mpDrv->Connector.cy = height; } else { /* black hole */ mpDrv->Connector.pu8Data = NULL; mpDrv->Connector.cbScanline = 0; mpDrv->Connector.cBits = 0; mpDrv->Connector.cx = 0; mpDrv->Connector.cy = 0; } } /** * Changes the current frame buffer. Called on EMT to avoid both * race conditions and excessive locking. * * @note locks this object for writing * @thread EMT */ /* static */ DECLCALLBACK(int) Display::changeFramebuffer (Display *that, IFramebuffer *aFB, bool aInternal, unsigned uScreenId) { LogFlowFunc (("uScreenId = %d\n", uScreenId)); AssertReturn (that, VERR_INVALID_PARAMETER); AssertReturn (aFB || aInternal, VERR_INVALID_PARAMETER); AssertReturn (uScreenId >= 0 && uScreenId < that->mcMonitors, VERR_INVALID_PARAMETER); /// @todo (r=dmik) AutoCaller AutoLock alock (that); DISPLAYFBINFO *pDisplayFBInfo = &that->maFramebuffers[uScreenId]; pDisplayFBInfo->pFramebuffer = aFB; that->mInternalFramebuffer = aInternal; that->mSupportedAccelOps = 0; /* determine which acceleration functions are supported by this framebuffer */ if (aFB && !aInternal) { HRESULT rc; BOOL accelSupported = FALSE; rc = aFB->OperationSupported ( FramebufferAccelerationOperation_SolidFillAcceleration, &accelSupported); AssertComRC (rc); if (accelSupported) that->mSupportedAccelOps |= FramebufferAccelerationOperation_SolidFillAcceleration; accelSupported = FALSE; rc = aFB->OperationSupported ( FramebufferAccelerationOperation_ScreenCopyAcceleration, &accelSupported); AssertComRC (rc); if (accelSupported) that->mSupportedAccelOps |= FramebufferAccelerationOperation_ScreenCopyAcceleration; } that->mParent->consoleVRDPServer()->SendResize (); that->updateDisplayData (true /* aCheckParams */); return VINF_SUCCESS; } /** * Handle display resize event issued by the VGA device for the primary screen. * * @see PDMIDISPLAYCONNECTOR::pfnResize */ DECLCALLBACK(int) Display::displayResizeCallback(PPDMIDISPLAYCONNECTOR pInterface, uint32_t bpp, void *pvVRAM, uint32_t cbLine, uint32_t cx, uint32_t cy) { PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface); LogFlowFunc (("bpp %d, pvVRAM %p, cbLine %d, cx %d, cy %d\n", bpp, pvVRAM, cbLine, cx, cy)); return pDrv->pDisplay->handleDisplayResize(VBOX_VIDEO_PRIMARY_SCREEN, bpp, pvVRAM, cbLine, cx, cy); } /** * Handle display update. * * @see PDMIDISPLAYCONNECTOR::pfnUpdateRect */ DECLCALLBACK(void) Display::displayUpdateCallback(PPDMIDISPLAYCONNECTOR pInterface, uint32_t x, uint32_t y, uint32_t cx, uint32_t cy) { PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface); #ifdef DEBUG_sunlover LogFlowFunc (("mfVideoAccelEnabled = %d, %d,%d %dx%d\n", pDrv->pDisplay->mfVideoAccelEnabled, x, y, cx, cy)); #endif /* DEBUG_sunlover */ /* This call does update regardless of VBVA status. * But in VBVA mode this is called only as result of * pfnUpdateDisplayAll in the VGA device. */ pDrv->pDisplay->handleDisplayUpdate(x, y, cx, cy); } /** * Periodic display refresh callback. * * @see PDMIDISPLAYCONNECTOR::pfnRefresh */ DECLCALLBACK(void) Display::displayRefreshCallback(PPDMIDISPLAYCONNECTOR pInterface) { PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface); #ifdef DEBUG_sunlover STAM_PROFILE_START(&StatDisplayRefresh, a); #endif /* DEBUG_sunlover */ #ifdef DEBUG_sunlover_2 LogFlowFunc (("pDrv->pDisplay->mfVideoAccelEnabled = %d\n", pDrv->pDisplay->mfVideoAccelEnabled)); #endif /* DEBUG_sunlover_2 */ Display *pDisplay = pDrv->pDisplay; unsigned uScreenId; for (uScreenId = 0; uScreenId < pDisplay->mcMonitors; uScreenId++) { DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId]; /* Check the resize status. The status can be checked normally because * the status affects only the EMT. */ uint32_t u32ResizeStatus = pFBInfo->u32ResizeStatus; if (u32ResizeStatus == ResizeStatus_UpdateDisplayData) { LogFlowFunc (("ResizeStatus_UpdateDisplayData %d\n", uScreenId)); /* The framebuffer was resized and display data need to be updated. */ pDisplay->handleResizeCompletedEMT (); /* Continue with normal processing because the status here is ResizeStatus_Void. */ Assert (pFBInfo->u32ResizeStatus == ResizeStatus_Void); if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN) { /* Repaint the display because VM continued to run during the framebuffer resize. */ if (!pFBInfo->pFramebuffer.isNull()) pDrv->pUpPort->pfnUpdateDisplayAll(pDrv->pUpPort); } /* Ignore the refresh for the screen to replay the logic. */ continue; } else if (u32ResizeStatus == ResizeStatus_InProgress) { /* The framebuffer is being resized. Do not call the VGA device back. Immediately return. */ LogFlowFunc (("ResizeStatus_InProcess\n")); continue; } if (pFBInfo->pFramebuffer.isNull()) { /* * Do nothing in the "black hole" mode to avoid copying guest * video memory to the frame buffer */ } else { if (pDisplay->mfPendingVideoAccelEnable) { /* Acceleration was enabled while machine was not yet running * due to restoring from saved state. Update entire display and * actually enable acceleration. */ Assert(pDisplay->mpPendingVbvaMemory); /* Acceleration can not be yet enabled.*/ Assert(pDisplay->mpVbvaMemory == NULL); Assert(!pDisplay->mfVideoAccelEnabled); if (pDisplay->mfMachineRunning) { pDisplay->VideoAccelEnable (pDisplay->mfPendingVideoAccelEnable, pDisplay->mpPendingVbvaMemory); /* Reset the pending state. */ pDisplay->mfPendingVideoAccelEnable = false; pDisplay->mpPendingVbvaMemory = NULL; } } else { Assert(pDisplay->mpPendingVbvaMemory == NULL); if (pDisplay->mfVideoAccelEnabled) { Assert(pDisplay->mpVbvaMemory); pDisplay->VideoAccelFlush (); } else { Assert(pDrv->Connector.pu8Data); pDrv->pUpPort->pfnUpdateDisplay(pDrv->pUpPort); } } /* Inform the VRDP server that the current display update sequence is * completed. At this moment the framebuffer memory contains a definite * image, that is synchronized with the orders already sent to VRDP client. * The server can now process redraw requests from clients or initial * fullscreen updates for new clients. */ if (pFBInfo->u32ResizeStatus == ResizeStatus_Void) { Assert (pDisplay->mParent && pDisplay->mParent->consoleVRDPServer()); pDisplay->mParent->consoleVRDPServer()->SendUpdate (uScreenId, NULL, 0); } } } #ifdef DEBUG_sunlover STAM_PROFILE_STOP(&StatDisplayRefresh, a); #endif /* DEBUG_sunlover */ #ifdef DEBUG_sunlover_2 LogFlowFunc (("leave\n")); #endif /* DEBUG_sunlover_2 */ } /** * Reset notification * * @see PDMIDISPLAYCONNECTOR::pfnReset */ DECLCALLBACK(void) Display::displayResetCallback(PPDMIDISPLAYCONNECTOR pInterface) { PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface); LogFlowFunc (("\n")); /* Disable VBVA mode. */ pDrv->pDisplay->VideoAccelEnable (false, NULL); } /** * LFBModeChange notification * * @see PDMIDISPLAYCONNECTOR::pfnLFBModeChange */ DECLCALLBACK(void) Display::displayLFBModeChangeCallback(PPDMIDISPLAYCONNECTOR pInterface, bool fEnabled) { PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface); LogFlowFunc (("fEnabled=%d\n", fEnabled)); NOREF(fEnabled); /* Disable VBVA mode in any case. The guest driver reenables VBVA mode if necessary. */ pDrv->pDisplay->VideoAccelEnable (false, NULL); } /** * Adapter information change notification. * * @see PDMIDISPLAYCONNECTOR::pfnProcessAdapterData */ DECLCALLBACK(void) Display::displayProcessAdapterDataCallback(PPDMIDISPLAYCONNECTOR pInterface, void *pvVRAM, uint32_t u32VRAMSize) { PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface); if (pvVRAM == NULL) { unsigned i; for (i = 0; i < pDrv->pDisplay->mcMonitors; i++) { DISPLAYFBINFO *pFBInfo = &pDrv->pDisplay->maFramebuffers[i]; pFBInfo->u32Offset = 0; pFBInfo->u32MaxFramebufferSize = 0; pFBInfo->u32InformationSize = 0; } } else { uint8_t *pu8 = (uint8_t *)pvVRAM; pu8 += u32VRAMSize - VBOX_VIDEO_ADAPTER_INFORMATION_SIZE; // @todo uint8_t *pu8End = pu8 + VBOX_VIDEO_ADAPTER_INFORMATION_SIZE; VBOXVIDEOINFOHDR *pHdr; for (;;) { pHdr = (VBOXVIDEOINFOHDR *)pu8; pu8 += sizeof (VBOXVIDEOINFOHDR); if (pu8 >= pu8End) { LogRel(("VBoxVideo: Guest adapter information overflow!!!\n")); break; } if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_DISPLAY) { if (pHdr->u16Length != sizeof (VBOXVIDEOINFODISPLAY)) { LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "DISPLAY", pHdr->u16Length)); break; } VBOXVIDEOINFODISPLAY *pDisplay = (VBOXVIDEOINFODISPLAY *)pu8; if (pDisplay->u32Index >= pDrv->pDisplay->mcMonitors) { LogRel(("VBoxVideo: Guest adapter information invalid display index %d!!!\n", pDisplay->u32Index)); break; } DISPLAYFBINFO *pFBInfo = &pDrv->pDisplay->maFramebuffers[pDisplay->u32Index]; pFBInfo->u32Offset = pDisplay->u32Offset; pFBInfo->u32MaxFramebufferSize = pDisplay->u32FramebufferSize; pFBInfo->u32InformationSize = pDisplay->u32InformationSize; LogFlow(("VBOX_VIDEO_INFO_TYPE_DISPLAY: %d: at 0x%08X, size 0x%08X, info 0x%08X\n", pDisplay->u32Index, pDisplay->u32Offset, pDisplay->u32FramebufferSize, pDisplay->u32InformationSize)); } else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_QUERY_CONF32) { if (pHdr->u16Length != sizeof (VBOXVIDEOINFOQUERYCONF32)) { LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "CONF32", pHdr->u16Length)); break; } VBOXVIDEOINFOQUERYCONF32 *pConf32 = (VBOXVIDEOINFOQUERYCONF32 *)pu8; switch (pConf32->u32Index) { case VBOX_VIDEO_QCI32_MONITOR_COUNT: { pConf32->u32Value = pDrv->pDisplay->mcMonitors; } break; case VBOX_VIDEO_QCI32_OFFSCREEN_HEAP_SIZE: { /* @todo make configurable. */ pConf32->u32Value = _1M; } break; default: LogRel(("VBoxVideo: CONF32 %d not supported!!! Skipping.\n", pConf32->u32Index)); } } else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_END) { if (pHdr->u16Length != 0) { LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "END", pHdr->u16Length)); break; } break; } else { LogRel(("Guest adapter information contains unsupported type %d. The block has been skipped.\n", pHdr->u8Type)); } pu8 += pHdr->u16Length; } } } /** * Display information change notification. * * @see PDMIDISPLAYCONNECTOR::pfnProcessDisplayData */ DECLCALLBACK(void) Display::displayProcessDisplayDataCallback(PPDMIDISPLAYCONNECTOR pInterface, void *pvVRAM, unsigned uScreenId) { PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface); if (uScreenId >= pDrv->pDisplay->mcMonitors) { LogRel(("VBoxVideo: Guest display information invalid display index %d!!!\n", uScreenId)); return; } /* Get the display information strcuture. */ DISPLAYFBINFO *pFBInfo = &pDrv->pDisplay->maFramebuffers[uScreenId]; uint8_t *pu8 = (uint8_t *)pvVRAM; pu8 += pFBInfo->u32Offset + pFBInfo->u32MaxFramebufferSize; // @todo uint8_t *pu8End = pu8 + pFBInfo->u32InformationSize; VBOXVIDEOINFOHDR *pHdr; for (;;) { pHdr = (VBOXVIDEOINFOHDR *)pu8; pu8 += sizeof (VBOXVIDEOINFOHDR); if (pu8 >= pu8End) { LogRel(("VBoxVideo: Guest display information overflow!!!\n")); break; } if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_SCREEN) { if (pHdr->u16Length != sizeof (VBOXVIDEOINFOSCREEN)) { LogRel(("VBoxVideo: Guest display information %s invalid length %d!!!\n", "SCREEN", pHdr->u16Length)); break; } VBOXVIDEOINFOSCREEN *pScreen = (VBOXVIDEOINFOSCREEN *)pu8; pFBInfo->xOrigin = pScreen->xOrigin; pFBInfo->yOrigin = pScreen->yOrigin; pFBInfo->w = pScreen->u16Width; pFBInfo->h = pScreen->u16Height; LogFlow(("VBOX_VIDEO_INFO_TYPE_SCREEN: (%p) %d: at %d,%d, linesize 0x%X, size %dx%d, bpp %d, flags 0x%02X\n", pHdr, uScreenId, pScreen->xOrigin, pScreen->yOrigin, pScreen->u32LineSize, pScreen->u16Width, pScreen->u16Height, pScreen->bitsPerPixel, pScreen->u8Flags)); if (uScreenId != VBOX_VIDEO_PRIMARY_SCREEN) { /* Primary screen resize is initiated by the VGA device. */ pDrv->pDisplay->handleDisplayResize(uScreenId, pScreen->bitsPerPixel, (uint8_t *)pvVRAM + pFBInfo->u32Offset, pScreen->u32LineSize, pScreen->u16Width, pScreen->u16Height); } } else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_END) { if (pHdr->u16Length != 0) { LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "END", pHdr->u16Length)); break; } break; } else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_HOST_EVENTS) { if (pHdr->u16Length != sizeof (VBOXVIDEOINFOHOSTEVENTS)) { LogRel(("VBoxVideo: Guest display information %s invalid length %d!!!\n", "HOST_EVENTS", pHdr->u16Length)); break; } VBOXVIDEOINFOHOSTEVENTS *pHostEvents = (VBOXVIDEOINFOHOSTEVENTS *)pu8; pFBInfo->pHostEvents = pHostEvents; LogFlow(("VBOX_VIDEO_INFO_TYPE_HOSTEVENTS: (%p)\n", pHostEvents)); } else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_LINK) { if (pHdr->u16Length != sizeof (VBOXVIDEOINFOLINK)) { LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "LINK", pHdr->u16Length)); break; } VBOXVIDEOINFOLINK *pLink = (VBOXVIDEOINFOLINK *)pu8; pu8 += pLink->i32Offset; } else { LogRel(("Guest display information contains unsupported type %d\n", pHdr->u8Type)); } pu8 += pHdr->u16Length; } } /** * Queries an interface to the driver. * * @returns Pointer to interface. * @returns NULL if the interface was not supported by the driver. * @param pInterface Pointer to this interface structure. * @param enmInterface The requested interface identification. */ DECLCALLBACK(void *) Display::drvQueryInterface(PPDMIBASE pInterface, PDMINTERFACE enmInterface) { PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface); PDRVMAINDISPLAY pDrv = PDMINS2DATA(pDrvIns, PDRVMAINDISPLAY); switch (enmInterface) { case PDMINTERFACE_BASE: return &pDrvIns->IBase; case PDMINTERFACE_DISPLAY_CONNECTOR: return &pDrv->Connector; default: return NULL; } } /** * Destruct a display driver instance. * * @returns VBox status. * @param pDrvIns The driver instance data. */ DECLCALLBACK(void) Display::drvDestruct(PPDMDRVINS pDrvIns) { PDRVMAINDISPLAY pData = PDMINS2DATA(pDrvIns, PDRVMAINDISPLAY); LogFlowFunc (("iInstance=%d\n", pDrvIns->iInstance)); if (pData->pDisplay) { AutoLock displayLock (pData->pDisplay); pData->pDisplay->mpDrv = NULL; pData->pDisplay->mpVMMDev = NULL; pData->pDisplay->mLastAddress = NULL; pData->pDisplay->mLastBytesPerLine = 0; pData->pDisplay->mLastBitsPerPixel = 0, pData->pDisplay->mLastWidth = 0; pData->pDisplay->mLastHeight = 0; } } /** * Construct a display driver instance. * * @returns VBox status. * @param pDrvIns The driver instance data. * If the registration structure is needed, pDrvIns->pDrvReg points to it. * @param pCfgHandle Configuration node handle for the driver. Use this to obtain the configuration * of the driver instance. It's also found in pDrvIns->pCfgHandle, but like * iInstance it's expected to be used a bit in this function. */ DECLCALLBACK(int) Display::drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfgHandle) { PDRVMAINDISPLAY pData = PDMINS2DATA(pDrvIns, PDRVMAINDISPLAY); LogFlowFunc (("iInstance=%d\n", pDrvIns->iInstance)); /* * Validate configuration. */ if (!CFGMR3AreValuesValid(pCfgHandle, "Object\0")) return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES; PPDMIBASE pBaseIgnore; int rc = pDrvIns->pDrvHlp->pfnAttach(pDrvIns, &pBaseIgnore); if (rc != VERR_PDM_NO_ATTACHED_DRIVER) { AssertMsgFailed(("Configuration error: Not possible to attach anything to this driver!\n")); return VERR_PDM_DRVINS_NO_ATTACH; } /* * Init Interfaces. */ pDrvIns->IBase.pfnQueryInterface = Display::drvQueryInterface; pData->Connector.pfnResize = Display::displayResizeCallback; pData->Connector.pfnUpdateRect = Display::displayUpdateCallback; pData->Connector.pfnRefresh = Display::displayRefreshCallback; pData->Connector.pfnReset = Display::displayResetCallback; pData->Connector.pfnLFBModeChange = Display::displayLFBModeChangeCallback; pData->Connector.pfnProcessAdapterData = Display::displayProcessAdapterDataCallback; pData->Connector.pfnProcessDisplayData = Display::displayProcessDisplayDataCallback; /* * Get the IDisplayPort interface of the above driver/device. */ pData->pUpPort = (PPDMIDISPLAYPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_DISPLAY_PORT); if (!pData->pUpPort) { AssertMsgFailed(("Configuration error: No display port interface above!\n")); return VERR_PDM_MISSING_INTERFACE_ABOVE; } /* * Get the Display object pointer and update the mpDrv member. */ void *pv; rc = CFGMR3QueryPtr(pCfgHandle, "Object", &pv); if (VBOX_FAILURE(rc)) { AssertMsgFailed(("Configuration error: No/bad \"Object\" value! rc=%Vrc\n", rc)); return rc; } pData->pDisplay = (Display *)pv; /** @todo Check this cast! */ pData->pDisplay->mpDrv = pData; /* * Update our display information according to the framebuffer */ pData->pDisplay->updateDisplayData(); /* * Start periodic screen refreshes */ pData->pUpPort->pfnSetRefreshRate(pData->pUpPort, 20); return VINF_SUCCESS; } /** * Display driver registration record. */ const PDMDRVREG Display::DrvReg = { /* u32Version */ PDM_DRVREG_VERSION, /* szDriverName */ "MainDisplay", /* pszDescription */ "Main display driver (Main as in the API).", /* fFlags */ PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT, /* fClass. */ PDM_DRVREG_CLASS_DISPLAY, /* cMaxInstances */ ~0, /* cbInstance */ sizeof(DRVMAINDISPLAY), /* pfnConstruct */ Display::drvConstruct, /* pfnDestruct */ Display::drvDestruct, /* pfnIOCtl */ NULL, /* pfnPowerOn */ NULL, /* pfnReset */ NULL, /* pfnSuspend */ NULL, /* pfnResume */ NULL, /* pfnDetach */ NULL };