static PVBOXDISPMPLOGGER vboxDispMpLoggerGet()
{
if (ASMAtomicCmpXchgU32((volatile uint32_t *)&g_VBoxDispMpLogger.enmState, VBOXDISPMPLOGGER_STATE_INITIALIZING, VBOXDISPMPLOGGER_STATE_UNINITIALIZED))
{
HRESULT hr = vboxDispKmtCallbacksInit(&g_VBoxDispMpLogger.KmtCallbacks);
if (hr == S_OK)
{
/* we are on Vista+
* check if we can Open Adapter, i.e. WDDM driver is installed */
VBOXDISPKMT_ADAPTER Adapter;
hr = vboxDispKmtOpenAdapter(&g_VBoxDispMpLogger.KmtCallbacks, &Adapter);
if (hr == S_OK)
{
ASMAtomicWriteU32((volatile uint32_t *)&g_VBoxDispMpLogger.enmState, VBOXDISPMPLOGGER_STATE_INITIALIZED);
vboxDispKmtCloseAdapter(&Adapter);
return &g_VBoxDispMpLogger;
}
vboxDispKmtCallbacksTerm(&g_VBoxDispMpLogger.KmtCallbacks);
}
}
else if (ASMAtomicReadU32((volatile uint32_t *)&g_VBoxDispMpLogger.enmState) == VBOXDISPMPLOGGER_STATE_INITIALIZED)
{
return &g_VBoxDispMpLogger;
}
return NULL;
}
static HRESULT vboxUhgsmiKmtEngineCreate(PVBOXUHGSMI_PRIVATE_KMT pHgsmi, BOOL bD3D)
{
HRESULT hr = vboxDispKmtCallbacksInit(&pHgsmi->Callbacks);
if (hr == S_OK)
{
hr = vboxDispKmtOpenAdapter(&pHgsmi->Callbacks, &pHgsmi->Adapter);
if (hr == S_OK)
{
hr = vboxDispKmtCreateDevice(&pHgsmi->Adapter, &pHgsmi->Device);
if (hr == S_OK)
{
hr = vboxDispKmtCreateContext(&pHgsmi->Device, &pHgsmi->Context,
bD3D ? VBOXWDDM_CONTEXT_TYPE_CUSTOM_UHGSMI_3D : VBOXWDDM_CONTEXT_TYPE_CUSTOM_UHGSMI_GL,
CR_PROTOCOL_VERSION_MAJOR, CR_PROTOCOL_VERSION_MINOR,
NULL, 0);
if (hr == S_OK)
{
return S_OK;
}
else
{
WARN(("vboxDispKmtCreateContext failed, hr(0x%x)", hr));
}
vboxDispKmtDestroyDevice(&pHgsmi->Device);
}
else
{
WARN(("vboxDispKmtCreateDevice failed, hr(0x%x)", hr));
}
vboxDispKmtCloseAdapter(&pHgsmi->Adapter);
}
else
{
// WARN(("vboxDispKmtOpenAdapter failed, hr(0x%x)", hr));
}
vboxDispKmtCallbacksTerm(&pHgsmi->Callbacks);
}
else
{
WARN(("vboxDispKmtCallbacksInit failed, hr(0x%x)", hr));
}
return hr;
}
static int vboxCrHgsmiInitPerform(VBOXDISPKMT_CALLBACKS *pCallbacks)
{
HRESULT hr = vboxDispKmtCallbacksInit(pCallbacks);
/*Assert(hr == S_OK);*/
if (hr == S_OK)
{
/* check if we can create the hgsmi */
PVBOXUHGSMI pHgsmi = VBoxCrHgsmiCreate();
if (pHgsmi)
{
/* yes, we can, so this is wddm mode */
VBoxCrHgsmiDestroy(pHgsmi);
Log(("CrHgsmi: WDDM mode supported\n"));
return 1;
}
vboxDispKmtCallbacksTerm(pCallbacks);
}
Log(("CrHgsmi: unsupported\n"));
return -1;
}