VBOXVHWACMD_QUERYINFO1* VBoxDispVHWAQueryHostInfo1(PVBOXDISPDEV pDev)
{
VBOXVHWACMD* pCmd = VBoxDispVHWACommandCreate (pDev, VBOXVHWACMD_TYPE_QUERY_INFO1, sizeof(VBOXVHWACMD_QUERYINFO1));
VBOXVHWACMD_QUERYINFO1 *pInfo1;
if (!pCmd)
{
WARN(("VBoxDispVHWACommandCreate failed"));
return NULL;
}
pInfo1 = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_QUERYINFO1);
pInfo1->u.in.guestVersion.maj = VBOXVHWA_VERSION_MAJ;
pInfo1->u.in.guestVersion.min = VBOXVHWA_VERSION_MIN;
pInfo1->u.in.guestVersion.bld = VBOXVHWA_VERSION_BLD;
pInfo1->u.in.guestVersion.reserved = VBOXVHWA_VERSION_RSV;
if(VBoxDispVHWACommandSubmit (pDev, pCmd))
{
if(RT_SUCCESS(pCmd->rc))
{
return VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_QUERYINFO1);
}
}
VBoxDispVHWACommandRelease(pDev, pCmd);
return NULL;
}
int VBoxDispVHWAEnable(PVBOXDISPDEV pDev)
{
int rc = VERR_GENERAL_FAILURE;
VBOXVHWACMD* pCmd;
if (!pDev->hgsmi.bSupported)
{
return VERR_NOT_SUPPORTED;
}
pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_ENABLE, 0);
if (!pCmd)
{
WARN(("VBoxDispVHWACommandCreate failed"));
return rc;
}
if(VBoxDispVHWACommandSubmit(pDev, pCmd))
{
if(RT_SUCCESS(pCmd->rc))
{
rc = VINF_SUCCESS;
}
}
VBoxDispVHWACommandRelease(pDev, pCmd);
return rc;
}
VBOXVHWACMD_QUERYINFO2* VBoxDispVHWAQueryHostInfo2(PVBOXDISPDEV pDev, uint32_t numFourCC)
{
VBOXVHWACMD* pCmd = VBoxDispVHWACommandCreate (pDev, VBOXVHWACMD_TYPE_QUERY_INFO2, VBOXVHWAINFO2_SIZE(numFourCC));
VBOXVHWACMD_QUERYINFO2 *pInfo2;
if (!pCmd)
{
WARN(("VBoxDispVHWACommandCreate failed"));
return NULL;
}
pInfo2 = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_QUERYINFO2);
pInfo2->numFourCC = numFourCC;
if(VBoxDispVHWACommandSubmit (pDev, pCmd))
{
if(RT_SUCCESS(pCmd->rc))
{
if(pInfo2->numFourCC == numFourCC)
{
return pInfo2;
}
}
}
VBoxDispVHWACommandRelease(pDev, pCmd);
return NULL;
}
static DECLCALLBACK(void) VBoxDispVHWASurfFlipCompletion(PVBOXDISPDEV pDev, VBOXVHWACMD * pCmd, void * pContext)
{
VBOXVHWACMD_SURF_FLIP *pBody = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_SURF_FLIP);
PVBOXVHWASURFDESC pCurrDesc = (PVBOXVHWASURFDESC)pBody->CurrGuestSurfInfo;
PVBOXVHWASURFDESC pTargDesc = (PVBOXVHWASURFDESC)pBody->TargGuestSurfInfo;
ASMAtomicDecU32(&pCurrDesc->cPendingFlipsCurr);
ASMAtomicDecU32(&pTargDesc->cPendingFlipsTarg);
VBoxDispVHWACommandRelease(pDev, pCmd);
}
static DECLCALLBACK(void) VBoxDispVHWASurfBltCompletion(PVBOXDISPDEV pDev, VBOXVHWACMD * pCmd, void * pContext)
{
VBOXVHWACMD_SURF_BLT *pBody = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_SURF_BLT);
PVBOXVHWASURFDESC pSrcDesc = (PVBOXVHWASURFDESC)pBody->SrcGuestSurfInfo;
PVBOXVHWASURFDESC pDestDesc = (PVBOXVHWASURFDESC)pBody->DstGuestSurfInfo;
ASMAtomicDecU32(&pSrcDesc->cPendingBltsSrc);
ASMAtomicDecU32(&pDestDesc->cPendingBltsDst);
VBoxDispVHWACommandRelease(pDev, pCmd);
}
/* Called to destroy DirectDraw surface,
* in particular we should free vhwa resources allocated on VBoxDispDDCreateSurface.
* Note: we're always returning DDHAL_DRIVER_NOTHANDLED because we rely on DirectDraw memory manager.
*/
DWORD APIENTRY VBoxDispDDDestroySurface(PDD_DESTROYSURFACEDATA lpDestroySurface)
{
PVBOXDISPDEV pDev = (PVBOXDISPDEV) lpDestroySurface->lpDD->dhpdev;
LOGF_ENTER();
lpDestroySurface->ddRVal = DD_OK;
#ifdef VBOX_WITH_VIDEOHWACCEL
if (pDev->vhwa.bEnabled)
{
VBOXVHWACMD* pCmd;
pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_SURF_DESTROY, sizeof(VBOXVHWACMD_SURF_DESTROY));
if (pCmd)
{
VBOXVHWACMD_SURF_DESTROY *pBody = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_SURF_DESTROY);
PVBOXVHWASURFDESC pDesc = (PVBOXVHWASURFDESC)lpDestroySurface->lpDDSurface->lpGbl->dwReserved1;
if (pDesc)
{
memset(pBody, 0, sizeof(VBOXVHWACMD_SURF_DESTROY));
pBody->u.in.hSurf = pDesc->hHostHandle;
VBoxDispVHWACommandSubmit(pDev, pCmd);
VBoxDispVHWACommandRelease(pDev, pCmd);
VBoxDispVHWASurfDescFree(pDesc);
lpDestroySurface->lpDDSurface->lpGbl->dwReserved1 = (ULONG_PTR)NULL;
}
else
{
WARN(("!pDesc, memory overwrite somewhere?"));
lpDestroySurface->ddRVal = DDERR_GENERIC;
}
}
else
{
WARN(("VBoxDispVHWACommandCreate failed!"));
lpDestroySurface->ddRVal = DDERR_GENERIC;
}
}
else
#endif /*VBOX_WITH_VIDEOHWACCEL*/
LOGF_LEAVE();
return DDHAL_DRIVER_NOTHANDLED;
}
/* do not wait for completion */
void VBoxDispVHWACommandSubmitAsynch (PVBOXDISPDEV pDev, VBOXVHWACMD* pCmd, PFNVBOXVHWACMDCOMPLETION pfnCompletion, void * pContext)
{
pCmd->GuestVBVAReserved1 = (uintptr_t)pfnCompletion;
pCmd->GuestVBVAReserved2 = (uintptr_t)pContext;
VBoxDispVHWACommandRetain(pDev, pCmd);
VBoxHGSMIBufferSubmit(&pDev->hgsmi.ctx, pCmd);
if(!(pCmd->Flags & VBOXVHWACMD_FLAG_HG_ASYNCH))
{
/* the command is completed */
pfnCompletion(pDev, pCmd, pContext);
}
VBoxDispVHWACommandRelease(pDev, pCmd);
}
static void VBoxDispVHWACommandSubmitAsynchByEvent(PVBOXDISPDEV pDev, VBOXVHWACMD* pCmd, VBOXPEVENT pEvent)
{
pCmd->GuestVBVAReserved1 = (uintptr_t)pEvent;
pCmd->GuestVBVAReserved2 = 0;
/* ensure the command is not removed until we're processing it */
VBoxDispVHWACommandRetain(pDev, pCmd);
/* complete it asynchronously by setting event */
pCmd->Flags |= VBOXVHWACMD_FLAG_GH_ASYNCH_EVENT;
VBoxHGSMIBufferSubmit(&pDev->hgsmi.ctx, pCmd);
if(!(ASMAtomicReadU32((volatile uint32_t *)&pCmd->Flags) & VBOXVHWACMD_FLAG_HG_ASYNCH))
{
/* the command is completed */
pDev->vpAPI.VideoPortProcs.pfnSetEvent(pDev->vpAPI.pContext, pEvent);
}
VBoxDispVHWACommandRelease(pDev, pCmd);
}
void VBoxDispVHWACommandSubmitAsynchAndComplete (PVBOXDISPDEV pDev, VBOXVHWACMD* pCmd)
{
pCmd->GuestVBVAReserved1 = (uintptr_t)VBoxDispVHWAFreeCmdCompletion;
VBoxDispVHWACommandRetain(pDev, pCmd);
pCmd->Flags |= VBOXVHWACMD_FLAG_GH_ASYNCH_NOCOMPLETION;
VBoxHGSMIBufferSubmit(&pDev->hgsmi.ctx, pCmd);
if(!(pCmd->Flags & VBOXVHWACMD_FLAG_HG_ASYNCH)
|| pCmd->Flags & VBOXVHWACMD_FLAG_HG_ASYNCH_RETURNED)
{
/* the command is completed */
VBoxDispVHWAFreeCmdCompletion(pDev, pCmd, NULL);
}
VBoxDispVHWACommandRelease(pDev, pCmd);
}
/* Lock specified area of surface */
DWORD APIENTRY VBoxDispDDLock(PDD_LOCKDATA lpLock)
{
PVBOXDISPDEV pDev = (PVBOXDISPDEV) lpLock->lpDD->dhpdev;
LOGF_ENTER();
DD_SURFACE_LOCAL* pSurf = lpLock->lpDDSurface;
lpLock->ddRVal = DD_OK;
#if 0
#ifdef VBOX_WITH_VIDEOHWACCEL
if(pDev->vhwa.bEnabled)
{
PVBOXVHWASURFDESC pDesc = (PVBOXVHWASURFDESC) pSurf->lpGbl->dwReserved1;
RECTL tmpRect, *pRect;
if (!pDesc)
{
WARN(("!pDesc, memory overwrite somewhere?"));
lpLock->ddRVal = DDERR_GENERIC;
return DDHAL_DRIVER_HANDLED;
}
/* Check if host is still processing drawing commands */
if (ASMAtomicUoReadU32(&pDesc->cPendingBltsSrc)
|| ASMAtomicUoReadU32(&pDesc->cPendingFlipsCurr)
|| ASMAtomicUoReadU32(&pDesc->cPendingBltsDst)
|| ASMAtomicUoReadU32(&pDesc->cPendingFlipsTarg))
{
VBoxDispVHWACommandCheckHostCmds(pDev);
if(ASMAtomicUoReadU32(&pDesc->cPendingBltsSrc)
|| ASMAtomicUoReadU32(&pDesc->cPendingFlipsCurr)
|| ASMAtomicUoReadU32(&pDesc->cPendingBltsDst)
|| ASMAtomicUoReadU32(&pDesc->cPendingFlipsTarg))
{
lpLock->ddRVal = DDERR_WASSTILLDRAWING;
return DDHAL_DRIVER_HANDLED;
}
}
if (lpLock->bHasRect)
{
pRect = &lpLock->rArea;
}
else
{
tmpRect.left = 0;
tmpRect.top = 0;
tmpRect.right = pSurf->lpGbl->wWidth-1;
tmpRect.bottom = pSurf->lpGbl->wHeight-1;
pRect = &tmpRect;
}
if (lpLock->dwFlags & DDLOCK_DISCARDCONTENTS)
{
VBoxDispVHWARegionTrySubstitute(&pDesc->NonupdatedMemRegion, pRect);
VBoxDispVHWARegionAdd(&pDesc->UpdatedMemRegion, pRect);
}
else if (!VBoxDispVHWARegionIntersects(&pDesc->NonupdatedMemRegion, pRect))
{
VBoxDispVHWARegionAdd(&pDesc->UpdatedMemRegion, pRect);
}
else
{
VBOXVHWACMD *pCmd;
pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_SURF_LOCK, sizeof(VBOXVHWACMD_SURF_LOCK));
if (pCmd)
{
VBOXVHWACMD_SURF_LOCK *pBody = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_SURF_LOCK);
memset(pBody, 0, sizeof(VBOXVHWACMD_SURF_LOCK));
pBody->u.in.offSurface = VBoxDispVHWAVramOffsetFromPDEV(pDev, pSurf->lpGbl->fpVidMem);
VBoxDispVHWAFromRECTL(&pBody->u.in.rect, &pDesc->NonupdatedMemRegion.Rect);
pBody->u.in.rectValid = 1;
pBody->u.in.hSurf = pDesc->hHostHandle;
/* wait for the surface to be locked and memory buffer updated */
VBoxDispVHWACommandSubmit(pDev, pCmd);
VBOX_WARNRC(pCmd->rc);
VBoxDispVHWACommandRelease(pDev, pCmd);
VBoxDispVHWARegionClear(&pDesc->NonupdatedMemRegion);
}
else
{
WARN(("VBoxDispVHWACommandCreate failed!"));
lpLock->ddRVal = DDERR_GENERIC;
}
}
return DDHAL_DRIVER_NOTHANDLED;
}
#endif /*VBOX_WITH_VIDEOHWACCEL*/
#endif
/* We only care about primary surface as we'd have to report dirty rectangles to the host in the DDUnlock*/
if (pSurf->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
{
pDev->ddpsLock.bLocked = TRUE;
if (lpLock->bHasRect)
{
pDev->ddpsLock.rect = lpLock->rArea;
}
else
{
pDev->ddpsLock.rect.left = 0;
pDev->ddpsLock.rect.top = 0;
pDev->ddpsLock.rect.right = pDev->mode.ulWidth;
pDev->ddpsLock.rect.bottom = pDev->mode.ulHeight;
}
}
LOGF_LEAVE();
return DDHAL_DRIVER_NOTHANDLED;
}
/* Called to check if our driver can create surface with requested attributes */
DWORD APIENTRY VBoxDispDDCanCreateSurface(PDD_CANCREATESURFACEDATA lpCanCreateSurface)
{
PVBOXDISPDEV pDev = (PVBOXDISPDEV) lpCanCreateSurface->lpDD->dhpdev;
LOGF_ENTER();
PDD_SURFACEDESC lpDDS = lpCanCreateSurface->lpDDSurfaceDesc;
#ifdef VBOX_WITH_VIDEOHWACCEL
if(pDev->vhwa.bEnabled)
{
VBOXVHWACMD* pCmd;
uint32_t unsupportedSCaps = VBoxDispVHWAUnsupportedDDSCAPS(lpDDS->ddsCaps.dwCaps);
if(unsupportedSCaps)
{
WARN(("unsupported ddscaps: %#x", unsupportedSCaps));
lpCanCreateSurface->ddRVal = DDERR_INVALIDCAPS;
return DDHAL_DRIVER_HANDLED;
}
unsupportedSCaps = VBoxDispVHWAUnsupportedDDPFS(lpDDS->ddpfPixelFormat.dwFlags);
if(unsupportedSCaps)
{
WARN(("unsupported pixel format: %#x", unsupportedSCaps));
lpCanCreateSurface->ddRVal = DDERR_INVALIDPIXELFORMAT;
return DDHAL_DRIVER_HANDLED;
}
pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_SURF_CANCREATE, sizeof(VBOXVHWACMD_SURF_CANCREATE));
if(pCmd)
{
int rc;
VBOXVHWACMD_SURF_CANCREATE *pBody = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_SURF_CANCREATE);
memset(pBody, 0, sizeof(VBOXVHWACMD_SURF_CANCREATE));
rc = VBoxDispVHWAFromDDSURFACEDESC(&pBody->SurfInfo, lpDDS);
pBody->u.in.bIsDifferentPixelFormat = lpCanCreateSurface->bIsDifferentPixelFormat;
VBoxDispVHWACommandSubmit(pDev, pCmd);
if (RT_SUCCESS(pCmd->rc))
{
if(pBody->u.out.ErrInfo)
{
lpCanCreateSurface->ddRVal = DDERR_GENERIC;
}
else
{
WARN(("pBody->u.out.ErrInfo = %#x", pBody->u.out.ErrInfo));
lpCanCreateSurface->ddRVal = DD_OK;
}
}
else
{
WARN(("VBoxDispVHWACommandSubmit failed with rc=%#x", rc));
lpCanCreateSurface->ddRVal = DDERR_GENERIC;
}
VBoxDispVHWACommandRelease(pDev, pCmd);
}
else
{
WARN(("VBoxDispVHWACommandCreate failed!"));
lpCanCreateSurface->ddRVal = DDERR_GENERIC;
}
return DDHAL_DRIVER_HANDLED;
}
#endif /*VBOX_WITH_VIDEOHWACCEL*/
if (lpDDS->ddsCaps.dwCaps & DDSCAPS_ZBUFFER)
{
LOG(("No Z-Bufer support"));
lpCanCreateSurface->ddRVal = DDERR_UNSUPPORTED;
return DDHAL_DRIVER_HANDLED;
}
if (lpDDS->ddsCaps.dwCaps & DDSCAPS_TEXTURE)
{
LOG(("No texture support"));
lpCanCreateSurface->ddRVal = DDERR_UNSUPPORTED;
return DDHAL_DRIVER_HANDLED;
}
if (lpCanCreateSurface->bIsDifferentPixelFormat && (lpDDS->ddpfPixelFormat.dwFlags & DDPF_FOURCC))
{
LOG(("FOURCC not supported"));
lpCanCreateSurface->ddRVal = DDERR_UNSUPPORTED;
return DDHAL_DRIVER_HANDLED;
}
lpCanCreateSurface->ddRVal = DD_OK;
LOGF_LEAVE();
return DDHAL_DRIVER_HANDLED;
}
/* Called to create DirectDraw surface.
* Note: we always return DDHAL_DRIVER_NOTHANDLED, which asks DirectDraw memory manager
* to perform actual memory allocation in our DDraw heap.
*/
DWORD APIENTRY VBoxDispDDCreateSurface(PDD_CREATESURFACEDATA lpCreateSurface)
{
PVBOXDISPDEV pDev = (PVBOXDISPDEV) lpCreateSurface->lpDD->dhpdev;
LOGF_ENTER();
PDD_SURFACE_LOCAL pSurf = lpCreateSurface->lplpSList[0];
if (pSurf->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
{
LOG(("primary surface"));
pSurf->lpGbl->fpVidMem = 0;
}
else
{
LOG(("non primary surface"));
pSurf->lpGbl->fpVidMem = DDHAL_PLEASEALLOC_BLOCKSIZE;
}
pSurf->lpGbl->dwReserved1 = 0;
#ifdef VBOX_WITH_VIDEOHWACCEL
if(pDev->vhwa.bEnabled)
{
VBOXVHWACMD* pCmd;
pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_SURF_CREATE, sizeof(VBOXVHWACMD_SURF_CREATE));
if (pCmd)
{
VBOXVHWACMD_SURF_CREATE *pBody = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_SURF_CREATE);
PVBOXVHWASURFDESC pDesc;
int rc;
memset(pBody, 0, sizeof(VBOXVHWACMD_SURF_CREATE));
rc = VBoxDispVHWAFromDDSURFACEDESC(&pBody->SurfInfo, lpCreateSurface->lpDDSurfaceDesc);
VBOX_WARNRC(rc);
pBody->SurfInfo.surfCaps = VBoxDispVHWAFromDDSCAPS(pSurf->ddsCaps.dwCaps);
pBody->SurfInfo.flags |= DDSD_CAPS;
pBody->SurfInfo.height = pSurf->lpGbl->wHeight;
pBody->SurfInfo.width = pSurf->lpGbl->wWidth;
pBody->SurfInfo.flags |= DDSD_HEIGHT | DDSD_WIDTH;
VBoxDispVHWAFromDDPIXELFORMAT(&pBody->SurfInfo.PixelFormat, &pSurf->lpGbl->ddpfSurface);
pBody->SurfInfo.flags |= VBOXVHWA_SD_PIXELFORMAT;
if (pSurf->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
{
pBody->SurfInfo.offSurface = VBoxDispVHWAVramOffsetFromPDEV(pDev, 0);
}
else
{
pBody->SurfInfo.offSurface = VBOXVHWA_OFFSET64_VOID;
}
pDesc = VBoxDispVHWASurfDescAlloc();
if (pDesc)
{
VBoxDispVHWACommandSubmit(pDev, pCmd);
if (RT_SUCCESS(pCmd->rc))
{
uint32_t surfSizeX = pBody->SurfInfo.sizeX;
uint32_t surfSizeY = pBody->SurfInfo.sizeY;
pDesc->hHostHandle = pBody->SurfInfo.hSurf;
if(!!(pSurf->ddsCaps.dwCaps & DDSCAPS_OVERLAY)
&& !!(pSurf->ddsCaps.dwCaps & DDSCAPS_VISIBLE))
{
pDesc->bVisible = true;
}
pSurf->lpGbl->dwBlockSizeX = pBody->SurfInfo.sizeX;
pSurf->lpGbl->dwBlockSizeY = pBody->SurfInfo.sizeY;
pSurf->lpGbl->lPitch = pBody->SurfInfo.pitch;
lpCreateSurface->lpDDSurfaceDesc->lPitch = pSurf->lpGbl->lPitch;
lpCreateSurface->lpDDSurfaceDesc->dwFlags |= DDSD_PITCH;
/*@todo: it's probably a memory leak, because DDDestroySurface wouldn't be called for
* primary surfaces.
*/
pSurf->lpGbl->dwReserved1 = (ULONG_PTR)pDesc;
}
else
{
WARN(("VBoxDispVHWACommandSubmit failed with rc=%#x", rc));
VBoxDispVHWASurfDescFree(pDesc);
}
}
else
{
WARN(("VBoxDispVHWASurfDescAlloc failed"));
}
VBoxDispVHWACommandRelease(pDev, pCmd);
}
else
{
WARN(("VBoxDispVHWACommandCreate failed"));
}
return DDHAL_DRIVER_NOTHANDLED;
}
#endif /*VBOX_WITH_VIDEOHWACCEL*/
LPDDSURFACEDESC pDesc = lpCreateSurface->lpDDSurfaceDesc;
if (pDesc->ddpfPixelFormat.dwFlags & DDPF_PALETTEINDEXED4)
{
pSurf->lpGbl->lPitch = RT_ALIGN_T(pSurf->lpGbl->wWidth/2, 32, LONG);
}
else
if (pDesc->ddpfPixelFormat.dwFlags & DDPF_PALETTEINDEXED8)
{
pSurf->lpGbl->lPitch = RT_ALIGN_T(pSurf->lpGbl->wWidth, 32, LONG);
}
else
{
pSurf->lpGbl->lPitch = pSurf->lpGbl->wWidth*(pDesc->ddpfPixelFormat.dwRGBBitCount/8);
}
pSurf->lpGbl->dwBlockSizeX = pSurf->lpGbl->lPitch;
pSurf->lpGbl->dwBlockSizeY = pSurf->lpGbl->wHeight;
pDesc->lPitch = pSurf->lpGbl->lPitch;
pDesc->dwFlags |= DDSD_PITCH;
LOGF_LEAVE();
return DDHAL_DRIVER_NOTHANDLED;
}
void VBoxDispVHWAFreeHostInfo2(PVBOXDISPDEV pDev, VBOXVHWACMD_QUERYINFO2* pInfo)
{
VBOXVHWACMD* pCmd = VBOXVHWACMD_HEAD(pInfo);
VBoxDispVHWACommandRelease(pDev, pCmd);
}
static DECLCALLBACK(void) VBoxDispVHWAFreeCmdCompletion(PVBOXDISPDEV pDev, VBOXVHWACMD * pCmd, void * pContext)
{
VBoxDispVHWACommandRelease(pDev, pCmd);
}
