OVR_PUBLIC_FUNCTION(ovrResult) ovr_Create(ovrSession* pSession, ovrGraphicsLuid* pLuid)
{
// Initialize the opaque pointer with our own OpenVR-specific struct
ovrSession session = new struct ovrHmdStruct();
memset(session->ColorTexture, 0, sizeof(ovrHmdStruct::ColorTexture));
session->ThumbStick[ovrHand_Left] = true;
// Get the compositor interface
session->compositor = (vr::IVRCompositor*)VR_GetGenericInterface(vr::IVRCompositor_Version, &g_InitError);
if (g_InitError != vr::VRInitError_None)
return REV_InitErrorToOvrError(g_InitError);
session->compositor->SetTrackingSpace(vr::TrackingUniverseSeated);
// Get the settings interface
session->settings = (vr::IVRSettings*)VR_GetGenericInterface(vr::IVRSettings_Version, &g_InitError);
if (g_InitError != vr::VRInitError_None)
return REV_InitErrorToOvrError(g_InitError);
// Get the overlay interface
session->overlay = (vr::IVROverlay*)VR_GetGenericInterface(vr::IVROverlay_Version, &g_InitError);
if (g_InitError != vr::VRInitError_None)
return REV_InitErrorToOvrError(g_InitError);
// Apply settings
session->ThumbStickRange = session->settings->GetFloat(REV_SETTINGS_SECTION, "ThumbStickRange", 0.8f);
// Get the LUID for the adapter
int32_t index;
g_VRSystem->GetDXGIOutputInfo(&index);
if (index == -1)
index = 0;
// Create the DXGI factory
IDXGIFactory* pFactory;
HRESULT hr = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)(&pFactory));
if (FAILED(hr))
return ovrError_IncompatibleGPU;
IDXGIAdapter* pAdapter;
hr = pFactory->EnumAdapters(index, &pAdapter);
if (FAILED(hr))
return ovrError_MismatchedAdapters;
DXGI_ADAPTER_DESC desc;
hr = pAdapter->GetDesc(&desc);
if (FAILED(hr))
return ovrError_MismatchedAdapters;
// Copy the LUID into the structure
memcpy(pLuid, &desc.AdapterLuid, sizeof(LUID));
// Cleanup and return
pFactory->Release();
pAdapter->Release();
*pSession = session;
return ovrSuccess;
}
OVR_PUBLIC_FUNCTION(ovrResult) ovr_Initialize(const ovrInitParams* params)
{
MH_QueueDisableHook(LoadLibraryW);
MH_QueueDisableHook(OpenEventW);
MH_ApplyQueued();
g_hXInputLib = LoadLibraryW(L"xinput1_3.dll");
if (!g_hXInputLib)
return ovrError_LibLoad;
g_pXInputGetState = (_XInputGetState)GetProcAddress(g_hXInputLib, "XInputGetState");
if (!g_pXInputGetState)
return ovrError_LibLoad;
g_pXInputSetState = (_XInputSetState)GetProcAddress(g_hXInputLib, "XInputSetState");
if (!g_pXInputSetState)
return ovrError_LibLoad;
g_VRSystem = vr::VR_Init(&g_InitError, vr::VRApplication_Scene);
MH_QueueEnableHook(LoadLibraryW);
MH_QueueEnableHook(OpenEventW);
MH_ApplyQueued();
return REV_InitErrorToOvrError(g_InitError);
}
OVR_PUBLIC_FUNCTION(void) ovr_GetLastErrorInfo(ovrErrorInfo* errorInfo)
{
if (!errorInfo)
return;
const char* error = VR_GetVRInitErrorAsEnglishDescription(g_InitError);
strncpy_s(errorInfo->ErrorString, error, sizeof(ovrErrorInfo::ErrorString));
errorInfo->Result = REV_InitErrorToOvrError(g_InitError);
}
OVR_PUBLIC_FUNCTION(ovrResult) ovr_Initialize(const ovrInitParams* params)
{
MH_QueueDisableHook(LoadLibraryW);
MH_QueueDisableHook(OpenEventW);
MH_ApplyQueued();
g_VRSystem = vr::VR_Init(&g_InitError, vr::VRApplication_Scene);
MH_QueueEnableHook(LoadLibraryW);
MH_QueueEnableHook(OpenEventW);
MH_ApplyQueued();
return REV_InitErrorToOvrError(g_InitError);
}
