OpenVRExpansionPlugin.cpp

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// Copyright 1998-2016 Epic Games, Inc. All Rights Reserved.
 
#include "OpenVRExpansionPlugin.h"
#include "OpenVRExpansionFunctionLibrary.h"
 
#define LOCTEXT_NAMESPACE "FVRExpansionPluginModule"
 
void FOpenVRExpansionPluginModule::StartupModule()
{
    // This code will execute after your module is loaded into memory; the exact timing is specified in the .uplugin file per-module
    //LoadOpenVRModule();
}
 
void FOpenVRExpansionPluginModule::ShutdownModule()
{
    // This function may be called during shutdown to clean up your module.  For modules that support dynamic reloading,
    // we call this function before unloading the module.
//  UnloadOpenVRModule();
}
 
/*bool FOpenVRExpansionPluginModule::LoadOpenVRModule()
{
#if !STEAMVR_SUPPORTED_PLATFORM
    return false;
#else
#if PLATFORM_WINDOWS
#if PLATFORM_64BITS
 
    FString RootOpenVRPath;
    TCHAR VROverridePath[MAX_PATH];
    FPlatformMisc::GetEnvironmentVariable(TEXT("VR_OVERRIDE"), VROverridePath, MAX_PATH);
 
    if (FCString::Strlen(VROverridePath) > 0)
    {
        RootOpenVRPath = FString::Printf(TEXT("%s\\bin\\win64\\"), VROverridePath);
    }
    else
    {
        RootOpenVRPath = FPaths::EngineDir() / FString::Printf(TEXT("Binaries/ThirdParty/OpenVR/%s/Win64/"), OPENVR_SDK_VER);
    }
 
    FPlatformProcess::PushDllDirectory(*RootOpenVRPath);
    OpenVRDLLHandle = FPlatformProcess::GetDllHandle(*(RootOpenVRPath + "openvr_api.dll"));
    FPlatformProcess::PopDllDirectory(*RootOpenVRPath);
#else
    FString RootOpenVRPath = FPaths::EngineDir() / FString::Printf(TEXT("Binaries/ThirdParty/OpenVR/%s/Win32/"), OPENVR_SDK_VER);
    FPlatformProcess::PushDllDirectory(*RootOpenVRPath);
    OpenVRDLLHandle = FPlatformProcess::GetDllHandle(*(RootOpenVRPath + "openvr_api.dll"));
    FPlatformProcess::PopDllDirectory(*RootOpenVRPath);
#endif
#elif PLATFORM_MAC
    OpenVRDLLHandle = FPlatformProcess::GetDllHandle(TEXT("libopenvr_api.dylib"));
 
#elif PLATFORM_LINUX
    FString RootOpenVRPath = FPaths::EngineDir() / FString::Printf(TEXT("Binaries/ThirdParty/OpenVR/%s/linux64/"), OPENVR_SDK_VER);
    OpenVRDLLHandle = FPlatformProcess::GetDllHandle(*(RootOpenVRPath + "libopenvr_api.so"));
#else
    #error "SteamVRHMD is not supported for this platform."
#endif  //PLATFORM_WINDOWS
 
    if (!OpenVRDLLHandle)
    {
        //UE_LOG(OpenVRExpansionFunctionLibraryLog, Warning, TEXT("Failed to load OpenVR library."));
        return false;
    }
 
    //@todo steamvr: Remove GetProcAddress() workaround once we update to Steamworks 1.33 or higher
    //VRInitFn = (pVRInit)FPlatformProcess::GetDllExport(OpenVRDLLHandle, TEXT("VR_Init"));
    //VRShutdownFn = (pVRShutdown)FPlatformProcess::GetDllExport(OpenVRDLLHandle, TEXT("VR_Shutdown"));
    //VRIsHmdPresentFn = (pVRIsHmdPresent)FPlatformProcess::GetDllExport(OpenVRDLLHandle, TEXT("VR_IsHmdPresent"));
    //VRGetStringForHmdErrorFn = (pVRGetStringForHmdError)FPlatformProcess::GetDllExport(OpenVRDLLHandle, TEXT("VR_GetStringForHmdError"));
    UOpenVRExpansionFunctionLibrary::VRGetGenericInterfaceFn = (pVRGetGenericInterface)FPlatformProcess::GetDllExport(OpenVRDLLHandle, TEXT("VR_GetGenericInterface"));
 
    if (!UOpenVRExpansionFunctionLibrary::VRGetGenericInterfaceFn)
    {
        //UE_LOG(OpenVRExpansionFunctionLibraryLog, Warning, TEXT("Failed to GetProcAddress() on openvr_api.dll"));
        UnloadOpenVRModule();
        return false;
    }
    
    return true;
#endif
}*/
 
/*void FOpenVRExpansionPluginModule::UnloadOpenVRModule()
{
#if STEAMVR_SUPPORTED_PLATFORM
    if (OpenVRDLLHandle != nullptr)
    {
        FPlatformProcess::FreeDllHandle(OpenVRDLLHandle);
        OpenVRDLLHandle = nullptr;
        //(*VRShutdownFn)();
    }
 
    UOpenVRExpansionFunctionLibrary::VRGetGenericInterfaceFn = nullptr;
#endif
}*/
 
#undef LOCTEXT_NAMESPACE
    
IMPLEMENT_MODULE(FOpenVRExpansionPluginModule, OpenVRExpansionPlugin)