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[vr] Load OpenVR API DLL if necessary

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Some games initialize the DXGI factory and D3D11 device even before
loading the OpenVR DLL, so we have to be even more invasive.
This commit is contained in:
Philip Rebohle 2018-07-11 15:31:35 +02:00
parent 67fe452580
commit 22bb4391ba
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GPG Key ID: C8CC613427A31C99
2 changed files with 35 additions and 11 deletions
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42
src/dxvk/dxvk_openvr.cpp
View File

@ -67,10 +67,8 @@ namespace dxvk {
instance->enumAdapters(i)->handle()));
}
if (m_initializedOpenVr)
g_vrFunctions.shutdownInternal();
m_initializedDevExt = true;
this->shutdown();
}
@ -104,18 +102,29 @@ namespace dxvk {
vr::IVRCompositor* VrInstance::getCompositor() {
// Locate the OpenVR DLL if loaded by the process
HMODULE ovrApi = ::GetModuleHandle("openvr_api.dll");
// Skip OpenVR initialization if requested
if (env::getEnvVar(L"DXVK_NO_VR") == "1")
return nullptr;
if (ovrApi == nullptr) {
// Locate the OpenVR DLL if loaded by the process. Some
// applications may not have OpenVR loaded at the time
// they create the DXGI instance, so we try our own DLL.
m_ovrApi = ::GetModuleHandle("openvr_api.dll");
if (m_ovrApi == nullptr) {
m_ovrApi = ::LoadLibrary("openvr_api_dxvk.dll");
m_loadedOvrApi = m_ovrApi != nullptr;
}
if (m_ovrApi == nullptr) {
Logger::warn("OpenVR: Failed to locate module");
return nullptr;
}
// Load method used to retrieve the IVRCompositor interface
g_vrFunctions.initInternal = reinterpret_cast<VR_InitInternalProc> (::GetProcAddress(ovrApi, "VR_InitInternal"));
g_vrFunctions.shutdownInternal = reinterpret_cast<VR_ShutdownInternalProc> (::GetProcAddress(ovrApi, "VR_ShutdownInternal"));
g_vrFunctions.getGenericInterface = reinterpret_cast<VR_GetGenericInterfaceProc>(::GetProcAddress(ovrApi, "VR_GetGenericInterface"));
g_vrFunctions.initInternal = reinterpret_cast<VR_InitInternalProc> (::GetProcAddress(m_ovrApi, "VR_InitInternal"));
g_vrFunctions.shutdownInternal = reinterpret_cast<VR_ShutdownInternalProc> (::GetProcAddress(m_ovrApi, "VR_ShutdownInternal"));
g_vrFunctions.getGenericInterface = reinterpret_cast<VR_GetGenericInterfaceProc>(::GetProcAddress(m_ovrApi, "VR_GetGenericInterface"));
if (g_vrFunctions.getGenericInterface == nullptr) {
Logger::warn("OpenVR: VR_GetGenericInterface not found");
@ -150,8 +159,7 @@ namespace dxvk {
if (error != vr::VRInitError_None || compositor == nullptr) {
Logger::warn("OpenVR: Failed to query compositor interface");
g_vrFunctions.shutdownInternal();
m_initializedOpenVr = false;
this->shutdown();
return nullptr;
}
}
@ -159,5 +167,17 @@ namespace dxvk {
Logger::info("OpenVR: Compositor interface found");
return compositor;
}
void VrInstance::shutdown() {
if (m_initializedOpenVr)
g_vrFunctions.shutdownInternal();
if (m_loadedOvrApi)
::FreeLibrary(m_ovrApi);
m_initializedOpenVr = false;
m_loadedOvrApi = false;
}
}

4
src/dxvk/dxvk_openvr.h
View File

@ -66,7 +66,9 @@ namespace dxvk {
std::mutex m_mutex;
vr::IVRCompositor* m_compositor = nullptr;
HMODULE m_ovrApi = nullptr;
bool m_loadedOvrApi = false;
bool m_initializedOpenVr = false;
bool m_initializedInsExt = false;
bool m_initializedDevExt = false;
@ -83,6 +85,8 @@ namespace dxvk {
const std::string& str) const;
vr::IVRCompositor* getCompositor();
void shutdown();
};