codegen/openvr_interop.cs.py - external/github.com/ValveSoftware/openvr - Git at Google

 import sys
 import api_shared
 calculateinteropmethodname = api_shared.calculateinteropmethodname

 print ("""//======= Copyright (c) Valve Corporation, All rights reserved. ===============
 //
 // Purpose: This file contains C#/managed code bindings for the OpenVR interfaces
 // This file is auto-generated, do not edit it.
 //
 //=============================================================================
 #if !OPENVR_XR_API

 using System;
 using System.Runtime.InteropServices;
 using Valve.VR;

 #if UNITY_5_3_OR_NEWER
 using UnityEngine;
 #endif

 namespace Valve.VR
 {
 """)

 if len(sys.argv) != 2:
 	sys.exit(-1);
 json_path = sys.argv[1]

 data = api_shared.loadfile(json_path, 'vr')
 converttype = api_shared.converttype
 structlist = api_shared.structlist
 typedeflist = api_shared.typedeflist
 enumlist = api_shared.enumlist
 lastmethod = ''


 ############## define Csharp interfaces ######################

 api_shared.outputinterfaces('vr', data)

 ############ define csharp classes

 api_shared.outputclasses('vr', data)

 print("}\n\n");

 # Output the OpenVRInterop class
 print('public class OpenVRInterop\n{')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_InitInternal", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern uint InitInternal(ref EVRInitError peError, EVRApplicationType eApplicationType);')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_InitInternal2", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern uint InitInternal2(ref EVRInitError peError, EVRApplicationType eApplicationType,[In, MarshalAs(UnmanagedType.LPStr)] string pStartupInfo);')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_ShutdownInternal", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern void ShutdownInternal();')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_IsHmdPresent", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern bool IsHmdPresent();')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_IsRuntimeInstalled", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern bool IsRuntimeInstalled();')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_RuntimePath", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern string RuntimePath();')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_GetRuntimePath", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern bool GetRuntimePath(System.Text.StringBuilder pchPathBuffer, uint unBufferSize, ref uint punRequiredBufferSize);')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_GetStringForHmdError", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern IntPtr GetStringForHmdError(EVRInitError error);')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_GetGenericInterface", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern IntPtr GetGenericInterface([In, MarshalAs(UnmanagedType.LPStr)] string pchInterfaceVersion, ref EVRInitError peError);')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_IsInterfaceVersionValid", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern bool IsInterfaceVersionValid([In, MarshalAs(UnmanagedType.LPStr)] string pchInterfaceVersion);')
 print('[DllImportAttribute("openvr_api", EntryPoint = "VR_GetInitToken", CallingConvention = CallingConvention.Cdecl)]')
 print('internal static extern uint GetInitToken();')
 print("}\n\n");

 api_shared.outputenums('vr', data)

 print("""
 	[StructLayout(LayoutKind.Explicit)] public struct VREvent_Data_t
 	{
 		[FieldOffset(0)] public VREvent_Reserved_t reserved;
 		[FieldOffset(0)] public VREvent_Controller_t controller;
 		[FieldOffset(0)] public VREvent_Mouse_t mouse;
 		[FieldOffset(0)] public VREvent_Scroll_t scroll;
 		[FieldOffset(0)] public VREvent_Process_t process;
 		[FieldOffset(0)] public VREvent_Notification_t notification;
 		[FieldOffset(0)] public VREvent_Overlay_t overlay;
 		[FieldOffset(0)] public VREvent_Status_t status;
 		[FieldOffset(0)] public VREvent_Ipd_t ipd;
 		[FieldOffset(0)] public VREvent_Chaperone_t chaperone;
 		[FieldOffset(0)] public VREvent_PerformanceTest_t performanceTest;
 		[FieldOffset(0)] public VREvent_TouchPadMove_t touchPadMove;
 		[FieldOffset(0)] public VREvent_SeatedZeroPoseReset_t seatedZeroPoseReset;
 		[FieldOffset(0)] public VREvent_Screenshot_t screenshot;
 		[FieldOffset(0)] public VREvent_ScreenshotProgress_t screenshotProgress;
 		[FieldOffset(0)] public VREvent_ApplicationLaunch_t applicationLaunch;
 		[FieldOffset(0)] public VREvent_EditingCameraSurface_t cameraSurface;
 		[FieldOffset(0)] public VREvent_MessageOverlay_t messageOverlay;
 		[FieldOffset(0)] public VREvent_Property_t property;
 		[FieldOffset(0)] public VREvent_HapticVibration_t hapticVibration;
 		[FieldOffset(0)] public VREvent_WebConsole_t webConsole;
 		[FieldOffset(0)] public VREvent_InputBindingLoad_t inputBinding;
 		[FieldOffset(0)] public VREvent_SpatialAnchor_t spatialAnchor;
 		[FieldOffset(0)] public VREvent_InputActionManifestLoad_t actionManifest;
 		[FieldOffset(0)] public VREvent_ProgressUpdate_t progressUpdate;
 		[FieldOffset(0)] public VREvent_ShowUI_t showUi;
 		[FieldOffset(0)] public VREvent_ShowDevTools_t showDevTools;
 		[FieldOffset(0)] public VREvent_HDCPError_t hdcpError;
 		[FieldOffset(0)] public VREvent_AudioVolumeControl_t audioVolumeControl;
 		[FieldOffset(0)] public VREvent_AudioMuteControl_t audioMuteControl;
 		[FieldOffset(0)] public VREvent_Keyboard_t keyboard; // This has to be at the end due to a mono bug
 	}
 	""")

 print("""
 	[StructLayout(LayoutKind.Explicit)] public struct VROverlayIntersectionMaskPrimitive_Data_t
 	{
 		[FieldOffset(0)] public IntersectionMaskRectangle_t m_Rectangle;
 		[FieldOffset(0)] public IntersectionMaskCircle_t m_Circle;
 	}
 	""")

 api_shared.outputstructs('vr', data)


 # Output the OpenVR class
 print('\npublic class OpenVR\n{')
 print("""
 	public static uint InitInternal(ref EVRInitError peError, EVRApplicationType eApplicationType)
 	{
 		return OpenVRInterop.InitInternal(ref peError, eApplicationType);
 	}

 	public static uint InitInternal2(ref EVRInitError peError, EVRApplicationType eApplicationType, string pchStartupInfo)
 	{
 		return OpenVRInterop.InitInternal2(ref peError, eApplicationType, pchStartupInfo);
 	}

 	public static void ShutdownInternal()
 	{
 		OpenVRInterop.ShutdownInternal();
 	}

 	public static bool IsHmdPresent()
 	{
 		return OpenVRInterop.IsHmdPresent();
 	}

 	public static bool IsRuntimeInstalled()
 	{
 		return OpenVRInterop.IsRuntimeInstalled();
 	}

     public static string RuntimePath()
 	{
         try
         {
             uint pathSize = 512;
             uint requiredPathSize = 512;
             System.Text.StringBuilder path = new System.Text.StringBuilder((int)pathSize);
             bool success = OpenVRInterop.GetRuntimePath(path, pathSize, ref requiredPathSize);
             if (success == false)
             {
                 return null;
             }

             return path.ToString();
         } catch
         {
             return OpenVRInterop.RuntimePath(); //this api is deprecated but here to support older unity versions
         }
 	}

 	public static string GetStringForHmdError(EVRInitError error)
 	{
 		return Marshal.PtrToStringAnsi(OpenVRInterop.GetStringForHmdError(error));
 	}

 	public static IntPtr GetGenericInterface(string pchInterfaceVersion, ref EVRInitError peError)
 	{
 		return OpenVRInterop.GetGenericInterface(pchInterfaceVersion, ref peError);
 	}

 	public static bool IsInterfaceVersionValid(string pchInterfaceVersion)
 	{
 		return OpenVRInterop.IsInterfaceVersionValid(pchInterfaceVersion);
 	}

 	public static uint GetInitToken()
 	{
 		return OpenVRInterop.GetInitToken();
 	}
 """)

 ########
 # Output constants into OpenVR class

 for const in data['consts']:
 	if(len(const) > 0):
 		consttype = converttype(const['consttype'])
 		constval = const['constval']
 		if(consttype == 'string'):
 			constval = '\"' + constval + '\"'
 		print('public const '+consttype+' '+const['constname']+' = '+constval+';')

 ########
 # Output static constructors into OpenVR class
 #lastclass = ''
 #lastmethod = ''
 #for method in data['methods']:
 #	if (len(method) > 0):
 #		returntype = converttype(method['returntype'])
 #
 #		methodname = method['methodname']
 #		if(methodname == lastmethod):
 #			methodname = methodname + `count`
 #			count = count + 1
 #		else:
 #			count = 0
 #		lastmethod = method['methodname']
 #
 #		interfacename = method['classname']
 #		namespace = api_shared.getnamespace(interfacename)
 #		if(interfacename.find('::') == -1):
 #			classname= 'C' + interfacename[1:]
 #		else:
 #			interfacename = interfacename[interfacename.find('::') + 2:]
 #			classname = 'C' + interfacename[1:]
 #		if(namespace != ''):
 #			if(interfacename != lastclass):
 #				shortname = interfacename[1:]
 #				print('public static '+interfacename+' '+shortname+'()\n{\nreturn new '+classname+'(OpenVRInterop.'+shortname+'());\n}\n')
 #				lastclass = interfacename

 ########
 # Output interface wrappers into OpenVR class

 print("""
 	static uint VRToken { get; set; }

 	const string FnTable_Prefix = "FnTable:";

 	class COpenVRContext
 	{
 		public COpenVRContext() { Clear(); }

 		public void Clear()
 		{
 			m_pVRSystem = null;
 			m_pVRChaperone = null;
 			m_pVRChaperoneSetup = null;
 			m_pVRCompositor = null;
 			m_pVRHeadsetView = null;
 			m_pVROverlay = null;
 			m_pVROverlayView = null;
 			m_pVRRenderModels = null;
 			m_pVRExtendedDisplay = null;
 			m_pVRSettings = null;
 			m_pVRApplications = null;
 			m_pVRScreenshots = null;
 			m_pVRTrackedCamera = null;
 			m_pVRInput = null;
 			m_pVRIOBuffer = null;
 			m_pVRSpatialAnchors = null;
 			m_pVRNotifications = null;
 			m_pVRDebug = null;
 		}

 		void CheckClear()
 		{
 			if (VRToken != GetInitToken())
 			{
 				Clear();
 				VRToken = GetInitToken();
 			}
 		}

 		public CVRSystem VRSystem()
 		{
 			CheckClear();
 			if (m_pVRSystem == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRSystem_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRSystem = new CVRSystem(pInterface);
 			}
 			return m_pVRSystem;
 		}

 		public CVRChaperone VRChaperone()
 		{
 			CheckClear();
 			if (m_pVRChaperone == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRChaperone_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRChaperone = new CVRChaperone(pInterface);
 			}
 			return m_pVRChaperone;
 		}

 		public CVRChaperoneSetup VRChaperoneSetup()
 		{
 			CheckClear();
 			if (m_pVRChaperoneSetup == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRChaperoneSetup_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRChaperoneSetup = new CVRChaperoneSetup(pInterface);
 			}
 			return m_pVRChaperoneSetup;
 		}

 		public CVRCompositor VRCompositor()
 		{
 			CheckClear();
 			if (m_pVRCompositor == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRCompositor_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRCompositor = new CVRCompositor(pInterface);
 			}
 			return m_pVRCompositor;
 		}

 		public CVRHeadsetView VRHeadsetView()
 		{
 			CheckClear();
 			if (m_pVRHeadsetView == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRHeadsetView_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRHeadsetView = new CVRHeadsetView(pInterface);
 			}
 			return m_pVRHeadsetView;
 		}

 		public CVROverlay VROverlay()
 		{
 			CheckClear();
 			if (m_pVROverlay == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVROverlay_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVROverlay = new CVROverlay(pInterface);
 			}
 			return m_pVROverlay;
 		}

 		public CVROverlayView VROverlayView()
 		{
 			CheckClear();
 			if (m_pVROverlayView == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVROverlayView_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVROverlayView = new CVROverlayView(pInterface);
 			}
 			return m_pVROverlayView;
 		}

 		public CVRRenderModels VRRenderModels()
 		{
 			CheckClear();
 			if (m_pVRRenderModels == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRRenderModels_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRRenderModels = new CVRRenderModels(pInterface);
 			}
 			return m_pVRRenderModels;
 		}

 		public CVRExtendedDisplay VRExtendedDisplay()
 		{
 			CheckClear();
 			if (m_pVRExtendedDisplay == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRExtendedDisplay_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRExtendedDisplay = new CVRExtendedDisplay(pInterface);
 			}
 			return m_pVRExtendedDisplay;
 		}

 		public CVRSettings VRSettings()
 		{
 			CheckClear();
 			if (m_pVRSettings == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRSettings_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRSettings = new CVRSettings(pInterface);
 			}
 			return m_pVRSettings;
 		}

 		public CVRApplications VRApplications()
 		{
 			CheckClear();
 			if (m_pVRApplications == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRApplications_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRApplications = new CVRApplications(pInterface);
 			}
 			return m_pVRApplications;
 		}

 		public CVRScreenshots VRScreenshots()
 		{
 			CheckClear();
 			if (m_pVRScreenshots == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRScreenshots_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRScreenshots = new CVRScreenshots(pInterface);
 			}
 			return m_pVRScreenshots;
 		}

 		public CVRTrackedCamera VRTrackedCamera()
 		{
 			CheckClear();
 			if (m_pVRTrackedCamera == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRTrackedCamera_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRTrackedCamera = new CVRTrackedCamera(pInterface);
 			}
 			return m_pVRTrackedCamera;
 		}

 		public CVRInput VRInput()
 		{
 			CheckClear();
 			if (m_pVRInput == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRInput_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 					m_pVRInput = new CVRInput(pInterface);
 			}
 			return m_pVRInput;
 		}

 		public CVRIOBuffer VRIOBuffer()
 		{
 			CheckClear();
 			if (m_pVRIOBuffer == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix + IVRIOBuffer_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 						m_pVRIOBuffer = new CVRIOBuffer(pInterface);
 			}
 			return m_pVRIOBuffer;
 		}

 		public CVRSpatialAnchors VRSpatialAnchors()
 		{
 			CheckClear();
 			if (m_pVRSpatialAnchors == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix + IVRSpatialAnchors_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 						m_pVRSpatialAnchors = new CVRSpatialAnchors(pInterface);
 			}
 			return m_pVRSpatialAnchors;
 		}

 		public CVRDebug VRDebug()
 		{
 			CheckClear();
 			if (m_pVRDebug == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix + IVRDebug_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 						m_pVRDebug = new CVRDebug(pInterface);
 			}
 			return m_pVRDebug;
 		}

 		public CVRNotifications VRNotifications()
 		{
 			CheckClear();
 			if (m_pVRNotifications == null)
 			{
 				var eError = EVRInitError.None;
 				var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix + IVRNotifications_Version, ref eError);
 				if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
 						m_pVRNotifications = new CVRNotifications(pInterface);
 			}
 			return m_pVRNotifications;
 		}

 		private CVRSystem m_pVRSystem;
 		private CVRChaperone m_pVRChaperone;
 		private CVRChaperoneSetup m_pVRChaperoneSetup;
 		private CVRCompositor m_pVRCompositor;
 		private CVRHeadsetView m_pVRHeadsetView;
 		private CVROverlay m_pVROverlay;
 		private CVROverlayView m_pVROverlayView;
 		private CVRRenderModels m_pVRRenderModels;
 		private CVRExtendedDisplay m_pVRExtendedDisplay;
 		private CVRSettings m_pVRSettings;
 		private CVRApplications m_pVRApplications;
 		private CVRScreenshots m_pVRScreenshots;
 		private CVRTrackedCamera m_pVRTrackedCamera;
 		private CVRInput m_pVRInput;
 		private CVRIOBuffer m_pVRIOBuffer;
 		private CVRSpatialAnchors m_pVRSpatialAnchors;
 		private CVRNotifications m_pVRNotifications;
 		private CVRDebug m_pVRDebug;
 	};

 	private static COpenVRContext _OpenVRInternal_ModuleContext = null;
 	static COpenVRContext OpenVRInternal_ModuleContext
 	{
 		get
 		{
 			if (_OpenVRInternal_ModuleContext == null)
 				_OpenVRInternal_ModuleContext = new COpenVRContext();
 			return _OpenVRInternal_ModuleContext;
 		}
 	}

 	public static CVRSystem System { get { return OpenVRInternal_ModuleContext.VRSystem(); } }
 	public static CVRChaperone Chaperone { get { return OpenVRInternal_ModuleContext.VRChaperone(); } }
 	public static CVRChaperoneSetup ChaperoneSetup { get { return OpenVRInternal_ModuleContext.VRChaperoneSetup(); } }
 	public static CVRCompositor Compositor { get { return OpenVRInternal_ModuleContext.VRCompositor(); } }
 	public static CVRHeadsetView HeadsetView { get { return OpenVRInternal_ModuleContext.VRHeadsetView(); } }
 	public static CVROverlay Overlay { get { return OpenVRInternal_ModuleContext.VROverlay(); } }
 	public static CVROverlayView OverlayView { get { return OpenVRInternal_ModuleContext.VROverlayView(); } }
 	public static CVRRenderModels RenderModels { get { return OpenVRInternal_ModuleContext.VRRenderModels(); } }
 	public static CVRExtendedDisplay ExtendedDisplay { get { return OpenVRInternal_ModuleContext.VRExtendedDisplay(); } }
 	public static CVRSettings Settings { get { return OpenVRInternal_ModuleContext.VRSettings(); } }
 	public static CVRApplications Applications { get { return OpenVRInternal_ModuleContext.VRApplications(); } }
 	public static CVRScreenshots Screenshots { get { return OpenVRInternal_ModuleContext.VRScreenshots(); } }
 	public static CVRTrackedCamera TrackedCamera { get { return OpenVRInternal_ModuleContext.VRTrackedCamera(); } }
 	public static CVRInput Input { get { return OpenVRInternal_ModuleContext.VRInput(); } }
 	public static CVRIOBuffer IOBuffer { get { return OpenVRInternal_ModuleContext.VRIOBuffer(); } }
 	public static CVRSpatialAnchors SpatialAnchors { get { return OpenVRInternal_ModuleContext.VRSpatialAnchors(); } }
 	public static CVRNotifications Notifications { get { return OpenVRInternal_ModuleContext.VRNotifications(); } }
 	public static CVRDebug Debug { get { return OpenVRInternal_ModuleContext.VRDebug(); } }


 	/** Finds the active installation of vrclient.dll and initializes it */
 	public static CVRSystem Init(ref EVRInitError peError, EVRApplicationType eApplicationType = EVRApplicationType.VRApplication_Scene, string pchStartupInfo= "")
 	{
 		try
 		{
 			VRToken = InitInternal2(ref peError, eApplicationType, pchStartupInfo);
 		}
 		catch (EntryPointNotFoundException)
 		{
 			VRToken = InitInternal(ref peError, eApplicationType);
 		}

 		OpenVRInternal_ModuleContext.Clear();

 		if (peError != EVRInitError.None)
 			return null;

 		bool bInterfaceValid = IsInterfaceVersionValid(IVRSystem_Version);
 		if (!bInterfaceValid)
 		{
 			ShutdownInternal();
 			peError = EVRInitError.Init_InterfaceNotFound;
 			return null;
 		}

 		return OpenVR.System;
 	}

 	/** unloads vrclient.dll. Any interface pointers from the interface are
 	* invalid after this point */
 	public static void Shutdown()
 	{
 		ShutdownInternal();
 	}
 """)

 print("}\n\n");

 print ("""
 }
 #endif
 """)
	import sys
	import api_shared
	calculateinteropmethodname = api_shared.calculateinteropmethodname

	print ("""//======= Copyright (c) Valve Corporation, All rights reserved. ===============
	//
	// Purpose: This file contains C#/managed code bindings for the OpenVR interfaces
	// This file is auto-generated, do not edit it.
	//
	//=============================================================================
	#if !OPENVR_XR_API

	using System;
	using System.Runtime.InteropServices;
	using Valve.VR;

	#if UNITY_5_3_OR_NEWER
	using UnityEngine;
	#endif

	namespace Valve.VR
	{
	""")

	if len(sys.argv) != 2:
	sys.exit(-1);
	json_path = sys.argv[1]

	data = api_shared.loadfile(json_path, 'vr')
	converttype = api_shared.converttype
	structlist = api_shared.structlist
	typedeflist = api_shared.typedeflist
	enumlist = api_shared.enumlist
	lastmethod = ''


	############## define Csharp interfaces ######################

	api_shared.outputinterfaces('vr', data)

	############ define csharp classes

	api_shared.outputclasses('vr', data)

	print("}\n\n");

	# Output the OpenVRInterop class
	print('public class OpenVRInterop\n{')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_InitInternal", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern uint InitInternal(ref EVRInitError peError, EVRApplicationType eApplicationType);')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_InitInternal2", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern uint InitInternal2(ref EVRInitError peError, EVRApplicationType eApplicationType,[In, MarshalAs(UnmanagedType.LPStr)] string pStartupInfo);')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_ShutdownInternal", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern void ShutdownInternal();')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_IsHmdPresent", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern bool IsHmdPresent();')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_IsRuntimeInstalled", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern bool IsRuntimeInstalled();')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_RuntimePath", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern string RuntimePath();')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_GetRuntimePath", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern bool GetRuntimePath(System.Text.StringBuilder pchPathBuffer, uint unBufferSize, ref uint punRequiredBufferSize);')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_GetStringForHmdError", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern IntPtr GetStringForHmdError(EVRInitError error);')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_GetGenericInterface", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern IntPtr GetGenericInterface([In, MarshalAs(UnmanagedType.LPStr)] string pchInterfaceVersion, ref EVRInitError peError);')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_IsInterfaceVersionValid", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern bool IsInterfaceVersionValid([In, MarshalAs(UnmanagedType.LPStr)] string pchInterfaceVersion);')
	print('[DllImportAttribute("openvr_api", EntryPoint = "VR_GetInitToken", CallingConvention = CallingConvention.Cdecl)]')
	print('internal static extern uint GetInitToken();')
	print("}\n\n");

	api_shared.outputenums('vr', data)

	print("""
	[StructLayout(LayoutKind.Explicit)] public struct VREvent_Data_t
	{
	[FieldOffset(0)] public VREvent_Reserved_t reserved;
	[FieldOffset(0)] public VREvent_Controller_t controller;
	[FieldOffset(0)] public VREvent_Mouse_t mouse;
	[FieldOffset(0)] public VREvent_Scroll_t scroll;
	[FieldOffset(0)] public VREvent_Process_t process;
	[FieldOffset(0)] public VREvent_Notification_t notification;
	[FieldOffset(0)] public VREvent_Overlay_t overlay;
	[FieldOffset(0)] public VREvent_Status_t status;
	[FieldOffset(0)] public VREvent_Ipd_t ipd;
	[FieldOffset(0)] public VREvent_Chaperone_t chaperone;
	[FieldOffset(0)] public VREvent_PerformanceTest_t performanceTest;
	[FieldOffset(0)] public VREvent_TouchPadMove_t touchPadMove;
	[FieldOffset(0)] public VREvent_SeatedZeroPoseReset_t seatedZeroPoseReset;
	[FieldOffset(0)] public VREvent_Screenshot_t screenshot;
	[FieldOffset(0)] public VREvent_ScreenshotProgress_t screenshotProgress;
	[FieldOffset(0)] public VREvent_ApplicationLaunch_t applicationLaunch;
	[FieldOffset(0)] public VREvent_EditingCameraSurface_t cameraSurface;
	[FieldOffset(0)] public VREvent_MessageOverlay_t messageOverlay;
	[FieldOffset(0)] public VREvent_Property_t property;
	[FieldOffset(0)] public VREvent_HapticVibration_t hapticVibration;
	[FieldOffset(0)] public VREvent_WebConsole_t webConsole;
	[FieldOffset(0)] public VREvent_InputBindingLoad_t inputBinding;
	[FieldOffset(0)] public VREvent_SpatialAnchor_t spatialAnchor;
	[FieldOffset(0)] public VREvent_InputActionManifestLoad_t actionManifest;
	[FieldOffset(0)] public VREvent_ProgressUpdate_t progressUpdate;
	[FieldOffset(0)] public VREvent_ShowUI_t showUi;
	[FieldOffset(0)] public VREvent_ShowDevTools_t showDevTools;
	[FieldOffset(0)] public VREvent_HDCPError_t hdcpError;
	[FieldOffset(0)] public VREvent_AudioVolumeControl_t audioVolumeControl;
	[FieldOffset(0)] public VREvent_AudioMuteControl_t audioMuteControl;
	[FieldOffset(0)] public VREvent_Keyboard_t keyboard; // This has to be at the end due to a mono bug
	}
	""")

	print("""
	[StructLayout(LayoutKind.Explicit)] public struct VROverlayIntersectionMaskPrimitive_Data_t
	{
	[FieldOffset(0)] public IntersectionMaskRectangle_t m_Rectangle;
	[FieldOffset(0)] public IntersectionMaskCircle_t m_Circle;
	}
	""")

	api_shared.outputstructs('vr', data)


	# Output the OpenVR class
	print('\npublic class OpenVR\n{')
	print("""
	public static uint InitInternal(ref EVRInitError peError, EVRApplicationType eApplicationType)
	{
	return OpenVRInterop.InitInternal(ref peError, eApplicationType);
	}

	public static uint InitInternal2(ref EVRInitError peError, EVRApplicationType eApplicationType, string pchStartupInfo)
	{
	return OpenVRInterop.InitInternal2(ref peError, eApplicationType, pchStartupInfo);
	}

	public static void ShutdownInternal()
	{
	OpenVRInterop.ShutdownInternal();
	}

	public static bool IsHmdPresent()
	{
	return OpenVRInterop.IsHmdPresent();
	}

	public static bool IsRuntimeInstalled()
	{
	return OpenVRInterop.IsRuntimeInstalled();
	}

	public static string RuntimePath()
	{
	try
	{
	uint pathSize = 512;
	uint requiredPathSize = 512;
	System.Text.StringBuilder path = new System.Text.StringBuilder((int)pathSize);
	bool success = OpenVRInterop.GetRuntimePath(path, pathSize, ref requiredPathSize);
	if (success == false)
	{
	return null;
	}

	return path.ToString();
	} catch
	{
	return OpenVRInterop.RuntimePath(); //this api is deprecated but here to support older unity versions
	}
	}

	public static string GetStringForHmdError(EVRInitError error)
	{
	return Marshal.PtrToStringAnsi(OpenVRInterop.GetStringForHmdError(error));
	}

	public static IntPtr GetGenericInterface(string pchInterfaceVersion, ref EVRInitError peError)
	{
	return OpenVRInterop.GetGenericInterface(pchInterfaceVersion, ref peError);
	}

	public static bool IsInterfaceVersionValid(string pchInterfaceVersion)
	{
	return OpenVRInterop.IsInterfaceVersionValid(pchInterfaceVersion);
	}

	public static uint GetInitToken()
	{
	return OpenVRInterop.GetInitToken();
	}
	""")

	########
	# Output constants into OpenVR class

	for const in data['consts']:
	if(len(const) > 0):
	consttype = converttype(const['consttype'])
	constval = const['constval']
	if(consttype == 'string'):
	constval = '\"' + constval + '\"'
	print('public const '+consttype+' '+const['constname']+' = '+constval+';')

	########
	# Output static constructors into OpenVR class
	#lastclass = ''
	#lastmethod = ''
	#for method in data['methods']:
	# if (len(method) > 0):
	# returntype = converttype(method['returntype'])
	#
	# methodname = method['methodname']
	# if(methodname == lastmethod):
	# methodname = methodname + `count`
	# count = count + 1
	# else:
	# count = 0
	# lastmethod = method['methodname']
	#
	# interfacename = method['classname']
	# namespace = api_shared.getnamespace(interfacename)
	# if(interfacename.find('::') == -1):
	# classname= 'C' + interfacename[1:]
	# else:
	# interfacename = interfacename[interfacename.find('::') + 2:]
	# classname = 'C' + interfacename[1:]
	# if(namespace != ''):
	# if(interfacename != lastclass):
	# shortname = interfacename[1:]
	# print('public static '+interfacename+' '+shortname+'()\n{\nreturn new '+classname+'(OpenVRInterop.'+shortname+'());\n}\n')
	# lastclass = interfacename

	########
	# Output interface wrappers into OpenVR class

	print("""
	static uint VRToken { get; set; }

	const string FnTable_Prefix = "FnTable:";

	class COpenVRContext
	{
	public COpenVRContext() { Clear(); }

	public void Clear()
	{
	m_pVRSystem = null;
	m_pVRChaperone = null;
	m_pVRChaperoneSetup = null;
	m_pVRCompositor = null;
	m_pVRHeadsetView = null;
	m_pVROverlay = null;
	m_pVROverlayView = null;
	m_pVRRenderModels = null;
	m_pVRExtendedDisplay = null;
	m_pVRSettings = null;
	m_pVRApplications = null;
	m_pVRScreenshots = null;
	m_pVRTrackedCamera = null;
	m_pVRInput = null;
	m_pVRIOBuffer = null;
	m_pVRSpatialAnchors = null;
	m_pVRNotifications = null;
	m_pVRDebug = null;
	}

	void CheckClear()
	{
	if (VRToken != GetInitToken())
	{
	Clear();
	VRToken = GetInitToken();
	}
	}

	public CVRSystem VRSystem()
	{
	CheckClear();
	if (m_pVRSystem == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRSystem_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRSystem = new CVRSystem(pInterface);
	}
	return m_pVRSystem;
	}

	public CVRChaperone VRChaperone()
	{
	CheckClear();
	if (m_pVRChaperone == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRChaperone_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRChaperone = new CVRChaperone(pInterface);
	}
	return m_pVRChaperone;
	}

	public CVRChaperoneSetup VRChaperoneSetup()
	{
	CheckClear();
	if (m_pVRChaperoneSetup == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRChaperoneSetup_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRChaperoneSetup = new CVRChaperoneSetup(pInterface);
	}
	return m_pVRChaperoneSetup;
	}

	public CVRCompositor VRCompositor()
	{
	CheckClear();
	if (m_pVRCompositor == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRCompositor_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRCompositor = new CVRCompositor(pInterface);
	}
	return m_pVRCompositor;
	}

	public CVRHeadsetView VRHeadsetView()
	{
	CheckClear();
	if (m_pVRHeadsetView == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRHeadsetView_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRHeadsetView = new CVRHeadsetView(pInterface);
	}
	return m_pVRHeadsetView;
	}

	public CVROverlay VROverlay()
	{
	CheckClear();
	if (m_pVROverlay == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVROverlay_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVROverlay = new CVROverlay(pInterface);
	}
	return m_pVROverlay;
	}

	public CVROverlayView VROverlayView()
	{
	CheckClear();
	if (m_pVROverlayView == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVROverlayView_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVROverlayView = new CVROverlayView(pInterface);
	}
	return m_pVROverlayView;
	}

	public CVRRenderModels VRRenderModels()
	{
	CheckClear();
	if (m_pVRRenderModels == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRRenderModels_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRRenderModels = new CVRRenderModels(pInterface);
	}
	return m_pVRRenderModels;
	}

	public CVRExtendedDisplay VRExtendedDisplay()
	{
	CheckClear();
	if (m_pVRExtendedDisplay == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRExtendedDisplay_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRExtendedDisplay = new CVRExtendedDisplay(pInterface);
	}
	return m_pVRExtendedDisplay;
	}

	public CVRSettings VRSettings()
	{
	CheckClear();
	if (m_pVRSettings == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRSettings_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRSettings = new CVRSettings(pInterface);
	}
	return m_pVRSettings;
	}

	public CVRApplications VRApplications()
	{
	CheckClear();
	if (m_pVRApplications == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRApplications_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRApplications = new CVRApplications(pInterface);
	}
	return m_pVRApplications;
	}

	public CVRScreenshots VRScreenshots()
	{
	CheckClear();
	if (m_pVRScreenshots == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRScreenshots_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRScreenshots = new CVRScreenshots(pInterface);
	}
	return m_pVRScreenshots;
	}

	public CVRTrackedCamera VRTrackedCamera()
	{
	CheckClear();
	if (m_pVRTrackedCamera == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRTrackedCamera_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRTrackedCamera = new CVRTrackedCamera(pInterface);
	}
	return m_pVRTrackedCamera;
	}

	public CVRInput VRInput()
	{
	CheckClear();
	if (m_pVRInput == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix+IVRInput_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRInput = new CVRInput(pInterface);
	}
	return m_pVRInput;
	}

	public CVRIOBuffer VRIOBuffer()
	{
	CheckClear();
	if (m_pVRIOBuffer == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix + IVRIOBuffer_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRIOBuffer = new CVRIOBuffer(pInterface);
	}
	return m_pVRIOBuffer;
	}

	public CVRSpatialAnchors VRSpatialAnchors()
	{
	CheckClear();
	if (m_pVRSpatialAnchors == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix + IVRSpatialAnchors_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRSpatialAnchors = new CVRSpatialAnchors(pInterface);
	}
	return m_pVRSpatialAnchors;
	}

	public CVRDebug VRDebug()
	{
	CheckClear();
	if (m_pVRDebug == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix + IVRDebug_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRDebug = new CVRDebug(pInterface);
	}
	return m_pVRDebug;
	}

	public CVRNotifications VRNotifications()
	{
	CheckClear();
	if (m_pVRNotifications == null)
	{
	var eError = EVRInitError.None;
	var pInterface = OpenVRInterop.GetGenericInterface(FnTable_Prefix + IVRNotifications_Version, ref eError);
	if (pInterface != IntPtr.Zero && eError == EVRInitError.None)
	m_pVRNotifications = new CVRNotifications(pInterface);
	}
	return m_pVRNotifications;
	}

	private CVRSystem m_pVRSystem;
	private CVRChaperone m_pVRChaperone;
	private CVRChaperoneSetup m_pVRChaperoneSetup;
	private CVRCompositor m_pVRCompositor;
	private CVRHeadsetView m_pVRHeadsetView;
	private CVROverlay m_pVROverlay;
	private CVROverlayView m_pVROverlayView;
	private CVRRenderModels m_pVRRenderModels;
	private CVRExtendedDisplay m_pVRExtendedDisplay;
	private CVRSettings m_pVRSettings;
	private CVRApplications m_pVRApplications;
	private CVRScreenshots m_pVRScreenshots;
	private CVRTrackedCamera m_pVRTrackedCamera;
	private CVRInput m_pVRInput;
	private CVRIOBuffer m_pVRIOBuffer;
	private CVRSpatialAnchors m_pVRSpatialAnchors;
	private CVRNotifications m_pVRNotifications;
	private CVRDebug m_pVRDebug;
	};

	private static COpenVRContext _OpenVRInternal_ModuleContext = null;
	static COpenVRContext OpenVRInternal_ModuleContext
	{
	get
	{
	if (_OpenVRInternal_ModuleContext == null)
	_OpenVRInternal_ModuleContext = new COpenVRContext();
	return _OpenVRInternal_ModuleContext;
	}
	}

	public static CVRSystem System { get { return OpenVRInternal_ModuleContext.VRSystem(); } }
	public static CVRChaperone Chaperone { get { return OpenVRInternal_ModuleContext.VRChaperone(); } }
	public static CVRChaperoneSetup ChaperoneSetup { get { return OpenVRInternal_ModuleContext.VRChaperoneSetup(); } }
	public static CVRCompositor Compositor { get { return OpenVRInternal_ModuleContext.VRCompositor(); } }
	public static CVRHeadsetView HeadsetView { get { return OpenVRInternal_ModuleContext.VRHeadsetView(); } }
	public static CVROverlay Overlay { get { return OpenVRInternal_ModuleContext.VROverlay(); } }
	public static CVROverlayView OverlayView { get { return OpenVRInternal_ModuleContext.VROverlayView(); } }
	public static CVRRenderModels RenderModels { get { return OpenVRInternal_ModuleContext.VRRenderModels(); } }
	public static CVRExtendedDisplay ExtendedDisplay { get { return OpenVRInternal_ModuleContext.VRExtendedDisplay(); } }
	public static CVRSettings Settings { get { return OpenVRInternal_ModuleContext.VRSettings(); } }
	public static CVRApplications Applications { get { return OpenVRInternal_ModuleContext.VRApplications(); } }
	public static CVRScreenshots Screenshots { get { return OpenVRInternal_ModuleContext.VRScreenshots(); } }
	public static CVRTrackedCamera TrackedCamera { get { return OpenVRInternal_ModuleContext.VRTrackedCamera(); } }
	public static CVRInput Input { get { return OpenVRInternal_ModuleContext.VRInput(); } }
	public static CVRIOBuffer IOBuffer { get { return OpenVRInternal_ModuleContext.VRIOBuffer(); } }
	public static CVRSpatialAnchors SpatialAnchors { get { return OpenVRInternal_ModuleContext.VRSpatialAnchors(); } }
	public static CVRNotifications Notifications { get { return OpenVRInternal_ModuleContext.VRNotifications(); } }
	public static CVRDebug Debug { get { return OpenVRInternal_ModuleContext.VRDebug(); } }


	/** Finds the active installation of vrclient.dll and initializes it */
	public static CVRSystem Init(ref EVRInitError peError, EVRApplicationType eApplicationType = EVRApplicationType.VRApplication_Scene, string pchStartupInfo= "")
	{
	try
	{
	VRToken = InitInternal2(ref peError, eApplicationType, pchStartupInfo);
	}
	catch (EntryPointNotFoundException)
	{
	VRToken = InitInternal(ref peError, eApplicationType);
	}

	OpenVRInternal_ModuleContext.Clear();

	if (peError != EVRInitError.None)
	return null;

	bool bInterfaceValid = IsInterfaceVersionValid(IVRSystem_Version);
	if (!bInterfaceValid)
	{
	ShutdownInternal();
	peError = EVRInitError.Init_InterfaceNotFound;
	return null;
	}

	return OpenVR.System;
	}

	/** unloads vrclient.dll. Any interface pointers from the interface are
	* invalid after this point */
	public static void Shutdown()
	{
	ShutdownInternal();
	}
	""")

	print("}\n\n");

	print ("""
	}
	#endif
	""")