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source-engine/public/openvr/openvr.h
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#pragma once
// openvr.h
//========= Copyright Valve Corporation ============//
// Dynamically generated file. Do not modify this file directly.
#ifndef _OPENVR_API
#define _OPENVR_API
#include <stdint.h>
// vrtypes.h
namespace vr
{
#if defined(__linux__) || defined(__APPLE__)
// The 32-bit version of gcc has the alignment requirement for uint64 and double set to
// 4 meaning that even with #pragma pack(8) these types will only be four-byte aligned.
// The 64-bit version of gcc has the alignment requirement for these types set to
// 8 meaning that unless we use #pragma pack(4) our structures will get bigger.
// The 64-bit structure packing has to match the 32-bit structure packing for each platform.
#pragma pack( push, 4 )
#else
#pragma pack( push, 8 )
#endif
// right-handed system
// +y is up
// +x is to the right
// -z is going away from you
// Distance unit is meters
struct HmdMatrix34_t
{
float m[3][4];
};
struct HmdMatrix44_t
{
float m[4][4];
};
struct HmdVector3_t
{
float v[3];
};
struct HmdVector3d_t
{
double v[3];
};
struct HmdVector2_t
{
float v[2];
};
struct HmdQuaternion_t
{
double w, x, y, z;
};
struct HmdQuad_t
{
HmdVector3_t vCorners[ 4 ];
};
/** Used to return the post-distortion UVs for each color channel.
* UVs range from 0 to 1 with 0,0 in the upper left corner of the
* source render target. The 0,0 to 1,1 range covers a single eye. */
struct DistortionCoordinates_t
{
float rfRed[2];
float rfGreen[2];
float rfBlue[2];
};
enum Hmd_Eye
{
Eye_Left = 0,
Eye_Right = 1
};
enum GraphicsAPIConvention
{
API_DirectX = 0, // Normalized Z goes from 0 at the viewer to 1 at the far clip plane
API_OpenGL = 1, // Normalized Z goes from 1 at the viewer to -1 at the far clip plane
};
enum HmdTrackingResult
{
TrackingResult_Uninitialized = 1,
TrackingResult_Calibrating_InProgress = 100,
TrackingResult_Calibrating_OutOfRange = 101,
TrackingResult_Running_OK = 200,
TrackingResult_Running_OutOfRange = 201,
};
static const uint32_t k_unTrackingStringSize = 32;
static const uint32_t k_unMaxTrackedDeviceCount = 16;
static const uint32_t k_unTrackedDeviceIndex_Hmd = 0;
/** Describes what kind of object is being tracked at a given ID */
enum TrackedDeviceClass
{
TrackedDeviceClass_Invalid = 0, // the ID was not valid.
TrackedDeviceClass_HMD = 1, // Head-Mounted Displays
TrackedDeviceClass_Controller = 2, // Tracked controllers
TrackedDeviceClass_TrackingReference = 4, // Camera and base stations that serve as tracking reference points
TrackedDeviceClass_Other = 1000,
};
/** describes a single pose for a tracked object */
struct TrackedDevicePose_t
{
HmdMatrix34_t mDeviceToAbsoluteTracking;
HmdVector3_t vVelocity; // velocity in tracker space in m/s
HmdVector3_t vAngularVelocity; // angular velocity in radians/s (?)
HmdTrackingResult eTrackingResult;
bool bPoseIsValid;
// This indicates that there is a device connected for this spot in the pose array.
// It could go from true to false if the user unplugs the device.
bool bDeviceIsConnected;
};
/** Identifies which style of tracking origin the application wants to use
* for the poses it is requesting */
enum TrackingUniverseOrigin
{
TrackingUniverseSeated = 0, // Poses are provided relative to the seated zero pose
TrackingUniverseStanding = 1, // Poses are provided relative to the safe bounds configured by the user
TrackingUniverseRawAndUncalibrated = 2, // Poses are provided in the coordinate system defined by the driver. You probably don't want this one.
};
/** Each entry in this enum represents a property that can be retrieved about a
* tracked device. Many fields are only valid for one TrackedDeviceClass. */
enum TrackedDeviceProperty
{
// general properties that apply to all device classes
Prop_TrackingSystemName_String = 1000,
Prop_ModelNumber_String = 1001,
Prop_SerialNumber_String = 1002,
Prop_RenderModelName_String = 1003,
Prop_WillDriftInYaw_Bool = 1004,
Prop_ManufacturerName_String = 1005,
Prop_TrackingFirmwareVersion_String = 1006,
Prop_HardwareRevision_String = 1007,
// Properties that are unique to TrackedDeviceClass_HMD
Prop_ReportsTimeSinceVSync_Bool = 2000,
Prop_SecondsFromVsyncToPhotons_Float = 2001,
Prop_DisplayFrequency_Float = 2002,
Prop_UserIpdMeters_Float = 2003,
Prop_CurrentUniverseId_Uint64 = 2004,
Prop_PreviousUniverseId_Uint64 = 2005,
Prop_DisplayFirmwareVersion_String = 2006,
// Properties that are unique to TrackedDeviceClass_Controller
Prop_AttachedDeviceId_String = 3000,
Prop_SupportedButtons_Uint64 = 3001,
Prop_Axis0Type_Int32 = 3002, // Return value is of type EVRControllerAxisType
Prop_Axis1Type_Int32 = 3003, // Return value is of type EVRControllerAxisType
Prop_Axis2Type_Int32 = 3004, // Return value is of type EVRControllerAxisType
Prop_Axis3Type_Int32 = 3005, // Return value is of type EVRControllerAxisType
Prop_Axis4Type_Int32 = 3006, // Return value is of type EVRControllerAxisType
// Properties that are unique to TrackedDeviceClass_TrackingReference
Prop_FieldOfViewLeftDegrees_Float = 4000,
Prop_FieldOfViewRightDegrees_Float = 4001,
Prop_FieldOfViewTopDegrees_Float = 4002,
Prop_FieldOfViewBottomDegrees_Float = 4003,
Prop_TrackingRangeMinimumMeters_Float = 4004,
Prop_TrackingRangeMaximumMeters_Float = 4005,
};
/** Used to pass device IDs to API calls */
typedef uint32_t TrackedDeviceIndex_t;
static const uint32_t k_unTrackedDeviceIndexInvalid = 0xFFFFFFFF;
/** No string property will ever be longer than this length */
static const uint32_t k_unMaxPropertyStringSize = 32 * 1024;
/** Used to return errors that occur when reading properties. */
enum TrackedPropertyError
{
TrackedProp_Success = 0,
TrackedProp_WrongDataType = 1,
TrackedProp_WrongDeviceClass = 2,
TrackedProp_BufferTooSmall = 3,
TrackedProp_UnknownProperty = 4,
TrackedProp_InvalidDevice = 5,
TrackedProp_CouldNotContactServer = 6,
TrackedProp_ValueNotProvidedByDevice = 7,
TrackedProp_StringExceedsMaximumLength = 8,
};
/** a single vertex in a render model */
struct RenderModel_Vertex_t
{
HmdVector3_t vPosition; // position in meters in device space
HmdVector3_t vNormal;
float rfTextureCoord[ 2 ];
};
/** A texture map for use on a render model */
struct RenderModel_TextureMap_t
{
uint16_t unWidth, unHeight; // width and height of the texture map in pixels
const uint8_t *rubTextureMapData; // Map texture data. All textures are RGBA with 8 bits per channel per pixel. Data size is width * height * 4ub
};
/** Contains everything a game needs to render a single tracked or static object for the user. */
struct RenderModel_t
{
uint64_t ulInternalHandle; // Used internally by SteamVR
const RenderModel_Vertex_t *rVertexData; // Vertex data for the mesh
uint32_t unVertexCount; // Number of vertices in the vertex data
const uint16_t *rIndexData; // Indices into the vertex data for each triangle
uint32_t unTriangleCount; // Number of triangles in the mesh. Index count is 3 * TriangleCount
RenderModel_TextureMap_t diffuseTexture; // RGBA diffuse texture for the model
};
/** The types of events that could be posted (and what the parameters mean for each event type) */
enum EVREventType
{
VREvent_None = 0,
VREvent_TrackedDeviceActivated = 100,
VREvent_TrackedDeviceDeactivated = 101,
VREvent_TrackedDeviceUpdated = 102,
VREvent_ButtonPress = 200, // data is controller
VREvent_ButtonUnpress = 201, // data is controller
VREvent_ButtonTouch = 202, // data is controller
VREvent_ButtonUntouch = 203, // data is controller
VREvent_MouseMove = 300, // data is mouse
VREvent_MouseButtonDown = 301, // data is mouse
VREvent_MouseButtonUp = 302, // data is mouse
VREvent_InputFocusCaptured = 400, // data is process
VREvent_InputFocusReleased = 401, // data is process
};
/** VR controller button and axis IDs */
enum EVRButtonId
{
k_EButton_System = 0,
k_EButton_ApplicationMenu = 1,
k_EButton_Grip = 2,
k_EButton_Axis0 = 32,
k_EButton_Axis1 = 33,
k_EButton_Axis2 = 34,
k_EButton_Axis3 = 35,
k_EButton_Axis4 = 36,
// aliases for well known controllers
k_EButton_SteamVR_Touchpad = k_EButton_Axis0,
k_EButton_SteamVR_Trigger = k_EButton_Axis1,
k_EButton_Max = 64
};
inline uint64_t ButtonMaskFromId( EVRButtonId id ) { return 1ull << id; }
/** used for controller button events */
struct VREvent_Controller_t
{
EVRButtonId button;
};
/** used for simulated mouse events in overlay space */
enum EVRMouseButton
{
VRMouseButton_Left = 0x0001,
VRMouseButton_Right = 0x0002,
VRMouseButton_Middle = 0x0004,
};
/** used for simulated mouse events in overlay space */
struct VREvent_Mouse_t
{
float x, y;
EVRMouseButton button;
};
/** Used for events about processes */
struct VREvent_Process_t
{
uint32_t pid;
uint32_t oldPid;
};
/** Not actually used for any events. It is just used to reserve
* space in the union for future event types */
struct VREvent_Reserved_t
{
uint64_t reserved0;
uint64_t reserved1;
};
/** If you change this you must manually update openvr_interop.cs.py */
typedef union
{
VREvent_Reserved_t reserved;
VREvent_Controller_t controller;
VREvent_Mouse_t mouse;
VREvent_Process_t process;
} VREvent_Data_t;
/** An event posted by the server to all running applications */
struct VREvent_t
{
EVREventType eventType;
TrackedDeviceIndex_t trackedDeviceIndex;
VREvent_Data_t data;
float eventAgeSeconds;
};
/** The mesh to draw into the stencil (or depth) buffer to perform
* early stencil (or depth) kills of pixels that will never appear on the HMD.
* This mesh draws on all the pixels that will be hidden after distortion.
*
* If the HMD does not provide a visible area mesh pVertexData will be
* NULL and unTriangleCount will be 0. */
struct HiddenAreaMesh_t
{
const HmdVector2_t *pVertexData;
uint32_t unTriangleCount;
};
/** Identifies what kind of axis is on the controller at index n. Read this type
* with pVRSystem->Get( nControllerDeviceIndex, Prop_Axis0Type_Int32 + n );
*/
enum EVRControllerAxisType
{
k_eControllerAxis_None = 0,
k_eControllerAxis_TrackPad = 1,
k_eControllerAxis_Joystick = 2,
k_eControllerAxis_Trigger = 3, // Analog trigger data is in the X axis
};
/** contains information about one axis on the controller */
struct VRControllerAxis_t
{
float x; // Ranges from -1.0 to 1.0 for joysticks and track pads. Ranges from 0.0 to 1.0 for triggers were 0 is fully released.
float y; // Ranges from -1.0 to 1.0 for joysticks and track pads. Is always 0.0 for triggers.
};
/** the number of axes in the controller state */
static const uint32_t k_unControllerStateAxisCount = 5;
/** Holds all the state of a controller at one moment in time. */
struct VRControllerState001_t
{
// If packet num matches that on your prior call, then the controller state hasn't been changed since
// your last call and there is no need to process it
uint32_t unPacketNum;
// bit flags for each of the buttons. Use ButtonMaskFromId to turn an ID into a mask
uint64_t ulButtonPressed;
uint64_t ulButtonTouched;
// Axis data for the controller's analog inputs
VRControllerAxis_t rAxis[ k_unControllerStateAxisCount ];
};
typedef VRControllerState001_t VRControllerState_t;
/** determines how to provide output to the application of various event processing functions. */
enum EVRControllerEventOutputType
{
ControllerEventOutput_OSEvents = 0,
ControllerEventOutput_VREvents = 1,
};
/** Allows the application to customize how the overlay appears in the compositor */
struct Compositor_OverlaySettings
{
uint32_t size; // sizeof(Compositor_OverlaySettings)
bool curved, antialias;
float scale, distance, alpha;
float uOffset, vOffset, uScale, vScale;
float gridDivs, gridWidth, gridScale;
HmdMatrix44_t transform;
};
/** error codes returned by Vr_Init */
enum HmdError
{
HmdError_None = 0,
HmdError_Unknown = 1,
HmdError_Init_InstallationNotFound = 100,
HmdError_Init_InstallationCorrupt = 101,
HmdError_Init_VRClientDLLNotFound = 102,
HmdError_Init_FileNotFound = 103,
HmdError_Init_FactoryNotFound = 104,
HmdError_Init_InterfaceNotFound = 105,
HmdError_Init_InvalidInterface = 106,
HmdError_Init_UserConfigDirectoryInvalid = 107,
HmdError_Init_HmdNotFound = 108,
HmdError_Init_NotInitialized = 109,
HmdError_Init_PathRegistryNotFound = 110,
HmdError_Init_NoConfigPath = 111,
HmdError_Init_NoLogPath = 112,
HmdError_Init_PathRegistryNotWritable = 113,
HmdError_Driver_Failed = 200,
HmdError_Driver_Unknown = 201,
HmdError_Driver_HmdUnknown = 202,
HmdError_Driver_NotLoaded = 203,
HmdError_Driver_RuntimeOutOfDate = 204,
HmdError_Driver_HmdInUse = 205,
HmdError_IPC_ServerInitFailed = 300,
HmdError_IPC_ConnectFailed = 301,
HmdError_IPC_SharedStateInitFailed = 302,
HmdError_IPC_CompositorInitFailed = 303,
HmdError_IPC_MutexInitFailed = 304,
HmdError_VendorSpecific_UnableToConnectToOculusRuntime = 1000,
HmdError_Steam_SteamInstallationNotFound = 2000,
};
#pragma pack( pop )
}
// vrannotation.h
#ifdef __clang__
# define VR_CLANG_ATTR(ATTR) __attribute__((annotate( ATTR )))
#else
# define VR_CLANG_ATTR(ATTR)
#endif
#define VR_METHOD_DESC(DESC) VR_CLANG_ATTR( "desc:" #DESC ";" )
#define VR_IGNOREATTR() VR_CLANG_ATTR( "ignore" )
#define VR_OUT_STRUCT() VR_CLANG_ATTR( "out_struct: ;" )
#define VR_OUT_STRING() VR_CLANG_ATTR( "out_string: ;" )
#define VR_OUT_ARRAY_CALL(COUNTER,FUNCTION,PARAMS) VR_CLANG_ATTR( "out_array_call:" #COUNTER "," #FUNCTION "," #PARAMS ";" )
#define VR_OUT_ARRAY_COUNT(COUNTER) VR_CLANG_ATTR( "out_array_count:" #COUNTER ";" )
#define VR_ARRAY_COUNT(COUNTER) VR_CLANG_ATTR( "array_count:" #COUNTER ";" )
#define VR_ARRAY_COUNT_D(COUNTER, DESC) VR_CLANG_ATTR( "array_count:" #COUNTER ";desc:" #DESC )
#define VR_BUFFER_COUNT(COUNTER) VR_CLANG_ATTR( "buffer_count:" #COUNTER ";" )
#define VR_OUT_BUFFER_COUNT(COUNTER) VR_CLANG_ATTR( "out_buffer_count:" #COUNTER ";" )
#define VR_OUT_STRING_COUNT(COUNTER) VR_CLANG_ATTR( "out_string_count:" #COUNTER ";" )
// ivrsystem.h
namespace vr
{
class IVRSystem
{
public:
// ------------------------------------
// Display Methods
// ------------------------------------
/** Size and position that the window needs to be on the VR display. */
virtual void GetWindowBounds( int32_t *pnX, int32_t *pnY, uint32_t *pnWidth, uint32_t *pnHeight ) = 0;
/** Suggested size for the intermediate render target that the distortion pulls from. */
virtual void GetRecommendedRenderTargetSize( uint32_t *pnWidth, uint32_t *pnHeight ) = 0;
/** Gets the viewport in the frame buffer to draw the output of the distortion into */
virtual void GetEyeOutputViewport( Hmd_Eye eEye, uint32_t *pnX, uint32_t *pnY, uint32_t *pnWidth, uint32_t *pnHeight ) = 0;
/** The projection matrix for the specified eye */
virtual HmdMatrix44_t GetProjectionMatrix( Hmd_Eye eEye, float fNearZ, float fFarZ, GraphicsAPIConvention eProjType ) = 0;
/** The components necessary to build your own projection matrix in case your
* application is doing something fancy like infinite Z */
virtual void GetProjectionRaw( Hmd_Eye eEye, float *pfLeft, float *pfRight, float *pfTop, float *pfBottom ) = 0;
/** Returns the result of the distortion function for the specified eye and input UVs. UVs go from 0,0 in
* the upper left of that eye's viewport and 1,1 in the lower right of that eye's viewport. */
virtual DistortionCoordinates_t ComputeDistortion( Hmd_Eye eEye, float fU, float fV ) = 0;
/** Returns the transform from eye space to the head space. Eye space is the per-eye flavor of head
* space that provides stereo disparity. Instead of Model * View * Projection the sequence is Model * View * Eye^-1 * Projection.
* Normally View and Eye^-1 will be multiplied together and treated as View in your application.
*/
virtual HmdMatrix34_t GetEyeToHeadTransform( Hmd_Eye eEye ) = 0;
/** Returns the number of elapsed seconds since the last recorded vsync event. This
* will come from a vsync timer event in the timer if possible or from the application-reported
* time if that is not available. If no vsync times are available the function will
* return zero for vsync time and frame counter and return false from the method. */
virtual bool GetTimeSinceLastVsync( float *pfSecondsSinceLastVsync, uint64_t *pulFrameCounter ) = 0;
/** [D3D9 Only]
* Returns the adapter index that the user should pass into CreateDevice to set up D3D9 in such
* a way that it can go full screen exclusive on the HMD. Returns -1 if there was an error.
*/
virtual int32_t GetD3D9AdapterIndex() = 0;
/** [D3D10/11 Only]
* Returns the adapter index and output index that the user should pass into EnumAdapters and EnumOutputs
* to create the device and swap chain in DX10 and DX11. If an error occurs both indices will be set to -1.
*/
virtual void GetDXGIOutputInfo( int32_t *pnAdapterIndex, int32_t *pnAdapterOutputIndex ) = 0;
/** [Windows Only]
* Notifies the system that the VR output will appear in a particular window.
*/
virtual bool AttachToWindow( void *hWnd ) = 0;
// ------------------------------------
// Tracking Methods
// ------------------------------------
/** The pose that the tracker thinks that the HMD will be in at the specified number of seconds into the
* future. Pass 0 to get the state at the instant the method is called. Most of the time the application should
* calculate the time until the photons will be emitted from the display and pass that time into the method.
*
* This is roughly analogous to the inverse of the view matrix in most applications, though
* many games will need to do some additional rotation or translation on top of the rotation
* and translation provided by the head pose.
*
* For devices where bPoseIsValid is true the application can use the pose to position the device
* in question. The provided array can be any size up to k_unMaxTrackedDeviceCount.
*
* Seated experiences should call this method with TrackingUniverseSeated and receive poses relative
* to the seated zero pose. Standing experiences should call this method with TrackingUniverseStanding
* and receive poses relative to the chaperone soft bounds. TrackingUniverseRawAndUncalibrated should
* probably not be used unless the application is the chaperone calibration tool itself, but will provide
* poses relative to the hardware-specific coordinate system in the driver.
*/
virtual void GetDeviceToAbsoluteTrackingPose( TrackingUniverseOrigin eOrigin, float fPredictedSecondsToPhotonsFromNow, VR_ARRAY_COUNT(unTrackedDevicePoseArrayCount) TrackedDevicePose_t *pTrackedDevicePoseArray, uint32_t unTrackedDevicePoseArrayCount ) = 0;
/** Sets the zero pose for the seated tracker coordinate system to the current position and yaw of the HMD. After
* ResetSeatedZeroPose all GetDeviceToAbsoluteTrackingPose calls that pass TrackingUniverseSeated as the origin
* will be relative to this new zero pose. The new zero coordinate system will not change the fact that the Y axis
* is up in the real world, so the next pose returned from GetDeviceToAbsoluteTrackingPose after a call to
* ResetSeatedZeroPose may not be exactly an identity matrix. */
virtual void ResetSeatedZeroPose() = 0;
/** Returns the transform from the seated zero pose to the standing absolute tracking system. This allows
* applications to represent the seated origin to used or transform object positions from one coordinate
* system to the other.
*
* The seated origin may or may not be inside the soft or hard bounds returned by IVRChaperone. Its position
* depends on what the user has set in the chaperone calibration tool and previous calls to ResetSeatedZeroPose. */
virtual HmdMatrix34_t GetSeatedZeroPoseToStandingAbsoluteTrackingPose() = 0;
// ------------------------------------
// RenderModel methods
// ------------------------------------
/** Loads and returns a render model for use in the application. pchRenderModelName should be a render model name
* from the Prop_RenderModelName_String property or an absolute path name to a render model on disk.
*
* The resulting render model is valid until VR_Shutdown() is called or until FreeRenderModel() is called. When the
* application is finished with the render model it should call FreeRenderModel() to free the memory associated
* with the model.
*
* The method returns false if the model could not be loaded.
*
* The API expects that this function will be called at startup or when tracked devices are connected and disconnected.
* If it is called every frame it will hurt performance.
*/
virtual bool LoadRenderModel( const char *pchRenderModelName, RenderModel_t *pRenderModel ) = 0;
/** Frees a previously returned render model */
virtual void FreeRenderModel( RenderModel_t *pRenderModel ) = 0;
// ------------------------------------
// Property methods
// ------------------------------------
/** Returns the device class of a tracked device. If there has not been a device connected in this slot
* since the application started this function will return TrackedDevice_Invalid. For previous detected
* devices the function will return the previously observed device class.
*
* To determine which devices exist on the system, just loop from 0 to k_unMaxTrackedDeviceCount and check
* the device class. Every device with something other than TrackedDevice_Invalid is associated with an
* actual tracked device. */
virtual TrackedDeviceClass GetTrackedDeviceClass( vr::TrackedDeviceIndex_t unDeviceIndex ) = 0;
/** Returns true if there is a device connected in this slot. */
virtual bool IsTrackedDeviceConnected( vr::TrackedDeviceIndex_t unDeviceIndex ) = 0;
/** Returns a bool property. If the device index is not valid or the property is not a bool type this function will return false. */
virtual bool GetBoolTrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, TrackedDeviceProperty prop, TrackedPropertyError *pError = 0L ) = 0;
/** Returns a float property. If the device index is not valid or the property is not a float type this function will return 0. */
virtual float GetFloatTrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, TrackedDeviceProperty prop, TrackedPropertyError *pError = 0L ) = 0;
/** Returns an int property. If the device index is not valid or the property is not a int type this function will return 0. */
virtual int32_t GetInt32TrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, TrackedDeviceProperty prop, TrackedPropertyError *pError = 0L ) = 0;
/** Returns a uint64 property. If the device index is not valid or the property is not a uint64 type this function will return 0. */
virtual uint64_t GetUint64TrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, TrackedDeviceProperty prop, TrackedPropertyError *pError = 0L ) = 0;
/** Returns a matrix property. If the device index is not valid or the property is not a matrix type, this function will return identity. */
virtual HmdMatrix34_t GetMatrix34TrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, TrackedDeviceProperty prop, TrackedPropertyError *pError = 0L ) = 0;
/** Returns a string property. If the device index is not valid or the property is not a float type this function will
* return 0. Otherwise it returns the length of the number of bytes necessary to hold this string including the trailing
* null. Strings will generally fit in buffers of k_unTrackingStringSize characters. */
virtual uint32_t GetStringTrackedDeviceProperty( vr::TrackedDeviceIndex_t unDeviceIndex, TrackedDeviceProperty prop, VR_OUT_STRING() char *pchValue, uint32_t unBufferSize, TrackedPropertyError *pError = 0L ) = 0;
/** returns a string that corresponds with the specified property error. The string will be the name
* of the error enum value for all valid error codes */
virtual const char *GetPropErrorNameFromEnum( TrackedPropertyError error ) = 0;
// ------------------------------------
// Event methods
// ------------------------------------
/** Returns true and fills the event with the next event on the queue if there is one. If there are no events
* this method returns false */
virtual bool PollNextEvent( VREvent_t *pEvent ) = 0;
/** Returns true and fills the event with the next event on the queue if there is one. If there are no events
* this method returns false. Fills in the pose of the associated tracked device in the provided pose struct.
* This pose will always be older than the call to this function and should not be used to render the device. */
virtual bool PollNextEventWithPose( TrackingUniverseOrigin eOrigin, vr::VREvent_t *pEvent, vr::TrackedDevicePose_t *pTrackedDevicePose ) = 0;
/** returns the name of an EVREvent enum value */
virtual const char *GetEventTypeNameFromEnum( EVREventType eType ) = 0;
// ------------------------------------
// Rendering helper methods
// ------------------------------------
/** Returns the stencil mesh information for the current HMD. If this HMD does not have a stencil mesh the vertex data and count will be
* NULL and 0 respectively. This mesh is meant to be rendered into the stencil buffer (or into the depth buffer setting nearz) before rendering
* each eye's view. The pixels covered by this mesh will never be seen by the user after the lens distortion is applied and based on visibility to the panels.
* This will improve perf by letting the GPU early-reject pixels the user will never see before running the pixel shader.
* NOTE: Render this mesh with backface culling disabled since the winding order of the vertices can be different per-HMD or per-eye.
*/
virtual HiddenAreaMesh_t GetHiddenAreaMesh( Hmd_Eye eEye ) = 0;
// ------------------------------------
// Controller methods
// ------------------------------------
/** Fills the supplied struct with the current state of the controller. Returns false if the controller index
* is invalid. */
virtual bool GetControllerState( vr::TrackedDeviceIndex_t unControllerDeviceIndex, vr::VRControllerState_t *pControllerState ) = 0;
/** fills the supplied struct with the current state of the controller and the provided pose with the pose of
* the controller when the controller state was updated most recently. Use this form if you need a precise controller
* pose as input to your application when the user presses or releases a button. */
virtual bool GetControllerStateWithPose( TrackingUniverseOrigin eOrigin, vr::TrackedDeviceIndex_t unControllerDeviceIndex, vr::VRControllerState_t *pControllerState, TrackedDevicePose_t *pTrackedDevicePose ) = 0;
/** Trigger a single haptic pulse on a controller. After this call the application may not trigger another haptic pulse on this controller
* and axis combination for 5ms. */
virtual void TriggerHapticPulse( vr::TrackedDeviceIndex_t unControllerDeviceIndex, uint32_t unAxisId, unsigned short usDurationMicroSec ) = 0;
/** returns the name of an EVRButtonId enum value */
virtual const char *GetButtonIdNameFromEnum( EVRButtonId eButtonId ) = 0;
/** returns the name of an EVRControllerAxisType enum value */
virtual const char *GetControllerAxisTypeNameFromEnum( EVRControllerAxisType eAxisType ) = 0;
/** Processes mouse input from the specified controller as though it were a mouse pointed at a compositor overlay with the
* specified settings. The controller is treated like a laser pointer on the -z axis. The point where the laser pointer would
* intersect with the overlay is the mouse position, the trigger is left mouse, and the track pad is right mouse. When using
* system event output the caller should ensure that it has focus so that it receives the system events.
*
* Return true if the controller is pointed at the overlay and an event was generated. */
virtual bool HandleControllerOverlayInteractionAsMouse( const vr::Compositor_OverlaySettings & overlaySettings,
vr::HmdVector2_t vecWindowClientPositionOnScreen, vr::HmdVector2_t vecWindowClientSize,
vr::TrackedDeviceIndex_t unControllerDeviceIndex,
vr::EVRControllerEventOutputType eOutputType
) = 0;
/** Tells OpenVR that this process wants exclusive access to controller button states and button events. Other apps will be notified that
* they have lost input focus with a VREvent_InputFocusCaptured event. Returns false if input focus could not be captured for
* some reason. */
virtual bool CaptureInputFocus() = 0;
/** Tells OpenVR that this process no longer wants exclusive access to button states and button events. Other apps will be notified
* that input focus has been released with a VREvent_InputFocusReleased event. */
virtual void ReleaseInputFocus() = 0;
/** Returns true if input focus is captured by another process. */
virtual bool IsInputFocusCapturedByAnotherProcess() = 0;
};
static const char * const IVRSystem_Version = "IVRSystem_003";
}
// ivrchaperone.h
namespace vr
{
#if defined(__linux__) || defined(__APPLE__)
// The 32-bit version of gcc has the alignment requirement for uint64 and double set to
// 4 meaning that even with #pragma pack(8) these types will only be four-byte aligned.
// The 64-bit version of gcc has the alignment requirement for these types set to
// 8 meaning that unless we use #pragma pack(4) our structures will get bigger.
// The 64-bit structure packing has to match the 32-bit structure packing for each platform.
#pragma pack( push, 4 )
#else
#pragma pack( push, 8 )
#endif
enum ChaperoneCalibrationState
{
// OK!
ChaperoneCalibrationState_OK = 1, // Chaperone is fully calibrated and working correctly
// Warnings
ChaperoneCalibrationState_Warning = 100,
ChaperoneCalibrationState_Warning_BaseStationMayHaveMoved = 101, // A base station thinks that it might have moved
ChaperoneCalibrationState_Warning_BaseStationRemoved = 102, // There are less base stations than when calibrated
ChaperoneCalibrationState_Warning_SeatedBoundsInvalid = 103, // Seated bounds haven't been calibrated for the current tracking center
// Errors
ChaperoneCalibrationState_Error = 200,
ChaperoneCalibrationState_Error_BaseStationUninitalized = 201, // Tracking center hasn't be calibrated for at least one of the base stations
ChaperoneCalibrationState_Error_BaseStationConflict = 202, // Tracking center is calibrated, but base stations disagree on the tracking space
ChaperoneCalibrationState_Error_SoftBoundsInvalid = 203, // Soft bounds haven't been calibrated for the current tracking center
ChaperoneCalibrationState_Error_HardBoundsInvalid = 204, // Hard bounds haven't been calibrated for the current tracking center
};
/** SOFT BOUNDS ASSUMPTIONS
* Corners are in clockwise order.
* Tracking space center (0,0,0) is contained within the Soft Bounds.
* Angles of corners are between 25 and 155 degrees.
* Quadrilateral formed is convex.
* One side will run parallel to the X axis.
* Height of every corner is 0Y (on the floor). */
struct ChaperoneSoftBoundsInfo_t
{
HmdQuad_t quadCorners;
};
struct ChaperoneSeatedBoundsInfo_t
{
HmdVector3_t vSeatedHeadPosition;
HmdVector3_t vDeskEdgePositions[ 2 ];
};
/** HIGH LEVEL TRACKING SPACE ASSUMPTIONS:
* 0,0,0 is the preferred standing area center.
* 0Y is the floor height.
* -Z is the preferred forward facing direction. */
class IVRChaperone
{
public:
/** Get the current state of Chaperone calibration. This state can change at any time during a session due to physical base station changes. */
virtual ChaperoneCalibrationState GetCalibrationState() = 0;
/** Returns the 4 corner positions of the Soft Bounds (also know as Safe Zone and Play Space). */
virtual bool GetSoftBoundsInfo( ChaperoneSoftBoundsInfo_t *pInfo ) = 0;
/** Returns the quads representing the Hard Bounds (static physical obstacles). */
virtual bool GetHardBoundsInfo( VR_OUT_ARRAY_COUNT(punQuadsCount) HmdQuad_t *pQuadsBuffer, uint32_t* punQuadsCount ) = 0;
/** Returns the preferred seated position and front edge of their desk. */
virtual bool GetSeatedBoundsInfo( ChaperoneSeatedBoundsInfo_t *pInfo ) = 0;
};
static const char * const IVRChaperone_Version = "IVRChaperone_002";
#pragma pack( pop )
}
// ivrcompositor.h
namespace vr
{
#if defined(__linux__) || defined(__APPLE__)
// The 32-bit version of gcc has the alignment requirement for uint64 and double set to
// 4 meaning that even with #pragma pack(8) these types will only be four-byte aligned.
// The 64-bit version of gcc has the alignment requirement for these types set to
// 8 meaning that unless we use #pragma pack(4) our structures will get bigger.
// The 64-bit structure packing has to match the 32-bit structure packing for each platform.
#pragma pack( push, 4 )
#else
#pragma pack( push, 8 )
#endif
/** Identifies the graphics API for the associated device */
enum Compositor_DeviceType
{
Compositor_DeviceType_None,
Compositor_DeviceType_D3D9,
Compositor_DeviceType_D3D9Ex,
Compositor_DeviceType_D3D10,
Compositor_DeviceType_D3D11,
Compositor_DeviceType_OpenGL
};
/** Provides a single frame's timing information to the app */
struct Compositor_FrameTiming
{
uint32_t size; // sizeof(Compositor_FrameTiming)
double frameStart;
float frameVSync; // seconds from frame start
uint32_t droppedFrames;
uint32_t frameIndex;
vr::TrackedDevicePose_t pose;
};
/** Allows the application to control what part of the provided texture will be used in the
* frame buffer. */
struct Compositor_TextureBounds
{
float uMin, vMin;
float uMax, vMax;
};
#pragma pack( pop )
/** Allows the application to interact with the compositor */
class IVRCompositor
{
public:
/** Returns the last error that occurred in the compositor */
virtual uint32_t GetLastError( VR_OUT_STRING() char* pchBuffer, uint32_t unBufferSize ) = 0;
/** Turns vsync on or off on the compositor window */
virtual void SetVSync( bool bVSync ) = 0;
/** Returns true if vsync is enabled in the compositor window */
virtual bool GetVSync() = 0;
/** Sets gamma for the compositor window */
virtual void SetGamma( float fGamma ) = 0;
/** Returns the gamma for the compositor window */
virtual float GetGamma() = 0;
/** Sets the graphics device or context for the application that is going to feed
* images to the compositor. The type of the pDevice parameter must match the
* type that is provided:
* Compositor_DeviceType_D3D9 IDirect3DDevice9*
* Compositor_DeviceType_D3D9Ex IDirect3DDevice9Ex*
* Compositor_DeviceType_D3D10 ID3D10Device*
* Compositor_DeviceType_D3D11 ID3D11Device*
* Compositor_DeviceType_OpenGL HGLRC
*
* Note: D3D9 and D3D9Ex are not implemented at this time
*/
virtual void SetGraphicsDevice( Compositor_DeviceType eType, void* pDevice ) = 0;
/** Returns pose(s) to use to render scene. */
virtual void WaitGetPoses( VR_ARRAY_COUNT(unPoseArrayCount) TrackedDevicePose_t* pPoseArray, uint32_t unPoseArrayCount ) = 0;
/** Updated scene texture to display. If pBounds is NULL the entire texture will be used.
*
* OpenGL dirty state:
* glBindTexture
*/
virtual void Submit( Hmd_Eye eEye, void* pTexture, Compositor_TextureBounds* pBounds ) = 0;
/** Clears the frame that was sent with the last call to Submit. This will cause the
* compositor to show the grid until Submit is called again. */
virtual void ClearLastSubmittedFrame() = 0;
/** returns the default settings that will be used for the overlay texture. Fetching these defaults
* can be useful if you mostly want the default values but want to change a few settings. */
virtual void GetOverlayDefaults( Compositor_OverlaySettings* pSettings ) = 0;
/** Texture to draw over the scene at distortion time. This texture will appear over the world on a quad.
* The pSettings parameter controls the size and position of the quad. */
virtual void SetOverlay(void* pTexture, Compositor_OverlaySettings* pSettings ) = 0;
/** Separate interface for providing the data as a stream of bytes, but there is an upper bound on data that can be sent */
virtual void SetOverlayRaw(void* buffer, uint32_t width, uint32_t height, uint32_t depth, Compositor_OverlaySettings* pSettings ) = 0;
/** Separate interface for providing the image through a filename:
* can be png or jpg, and should not be bigger than 1920x1080 */
virtual void SetOverlayFromFile( const char *pchFilePath, Compositor_OverlaySettings* pSettings ) = 0;
/** Removes the scene overlay texture. */
virtual void ClearOverlay() = 0;
/** Returns true if timing data is filled it. Sets oldest timing info if nFramesAgo is larger than the stored history.
* Be sure to set timing.size = sizeof(Compositor_FrameTiming) on struct passed in before calling this function. */
virtual bool GetFrameTiming( Compositor_FrameTiming *pTiming, uint32_t unFramesAgo = 0 ) = 0;
/** Fades the view on the HMD to the specified color. The fade will take fSeconds, and the color values are between
* 0.0 and 1.0. This color is faded on top of the scene based on the alpha parameter. Removing the fade color instantly
* would be FadeToColor( 0.0, 0.0, 0.0, 0.0, 0.0 ). */
virtual void FadeToColor( float fSeconds, float fRed, float fGreen, float fBlue, float fAlpha, bool bBackground = false ) = 0;
/** Fading the Grid in or out in fSeconds */
virtual void FadeGrid( float fSeconds, bool bFadeIn ) = 0;
/** Brings the compositor window to the front. This is useful for covering any other window that may be on the HMD
* and is obscuring the compositor window. */
virtual void CompositorBringToFront() = 0;
/** Pushes the compositor window to the back. This is useful for allowing other applications to draw directly to the HMD. */
virtual void CompositorGoToBack() = 0;
/** Tells the compositor process to clean up and exit. You do not need to call this function at shutdown. Under normal
* circumstances the compositor will manage its own life cycle based on what applications are running. */
virtual void CompositorQuit() = 0;
/** Return whether the compositor is fullscreen */
virtual bool IsFullscreen() = 0;
/** Computes the overlay-space pixel coordinates of where the ray intersects the overlay with the
* specified settings. Returns false if there is no intersection. */
virtual bool ComputeOverlayIntersection( const Compositor_OverlaySettings* pSettings, float fAspectRatio, vr::TrackingUniverseOrigin eOrigin, vr::HmdVector3_t vSource, vr::HmdVector3_t vDirection, vr::HmdVector2_t *pvecIntersectionUV, vr::HmdVector3_t *pvecIntersectionTrackingSpace ) = 0;
/** Sets tracking space returned by WaitGetPoses */
virtual void SetTrackingSpace( TrackingUniverseOrigin eOrigin ) = 0;
/** Gets current tracking space returned by WaitGetPoses */
virtual TrackingUniverseOrigin GetTrackingSpace() = 0;
};
static const char * const IVRCompositor_Version = "IVRCompositor_005";
} // namespace vr
// ivrcontrolpanel.h
namespace vr
{
class IVRControlPanel
{
public:
// ------------------------------------
// Driver enumeration methods
// ------------------------------------
/** the number of active drivers */
virtual uint32_t GetDriverCount() = 0;
/** The ID of the specified driver as a UTF-8 string. Returns the length of the ID in bytes. If
* the buffer is not large enough to fit the ID an empty string will be returned. In general, 128 bytes
* will be enough to fit any ID. */
virtual uint32_t GetDriverId( uint32_t unDriverIndex, char *pchBuffer, uint32_t unBufferLen ) = 0;
// ------------------------------------
// Display Enumeration Methods
// ------------------------------------
/** the number of active displays on the specified driver */
virtual uint32_t GetDriverDisplayCount( const char *pchDriverId ) = 0;
/** The ID of the specified display in the specified driver as a UTF-8 string. Returns the
* length of the ID in bytes. If the buffer is not large enough to fit the ID an empty
* string will be returned. In general, 128 bytes will be enough to fit any ID. */
virtual uint32_t GetDriverDisplayId( const char *pchDriverId, uint32_t unDisplayIndex, char *pchBuffer, uint32_t unBufferLen ) = 0;
// ------------------------------------
// Display Detail Methods
// ------------------------------------
/** The model name of the specified driver in the specified driver as a UTF-8 string. Returns the
* length of the model name in bytes. If the buffer is not large enough to fit the model name an empty
* string will be returned. In general, 128 bytes will be enough to fit any model name. Returns 0 if
* the display or driver was not found. */
virtual uint32_t GetDriverDisplayModelNumber( const char *pchDriverId, const char *pchDisplayId, char *pchBuffer, uint32_t unBufferLen ) = 0;
/** The serial number of the specified driver in the specified driver as a UTF-8 string. Returns the
* length of the serial number in bytes. If the buffer is not large enough to fit the serial number an empty
* string will be returned. In general, 128 bytes will be enough to fit any model name. Returns 0 if
* the display or driver was not found. */
virtual uint32_t GetDriverDisplaySerialNumber( const char *pchDriverId, const char *pchDisplayId, char *pchBuffer, uint32_t unBufferLen ) = 0;
/** Returns the IVRSystem interface for the current display that matches the specified version number.
* This is usually unnecessary and the return value of VR_Init can be used without calling this method. */
VR_IGNOREATTR()
virtual class IVRSystem *GetCurrentDisplayInterface( const char *pchHmdInterfaceVersion ) = 0;
// ------------------------------------
// Shared Resource Methods
// ------------------------------------
/** Loads the specified resource into the provided buffer if large enough.
* Returns the size in bytes of the buffer required to hold the specified resource. */
virtual uint32_t LoadSharedResource( const char *pchResourceName, char *pchBuffer, uint32_t unBufferLen ) = 0;
// ------------------------------------
// IPD Methods
// ------------------------------------
/** Gets the current IPD (Interpupillary Distance) in meters. */
virtual float GetIPD() = 0;
/** Sets the current IPD (Interpupillary Distance) in meters. */
virtual void SetIPD( float fIPD ) = 0;
// ------------------------------------
// Compositor Methods
// ------------------------------------
/** Returns the IVRCompositor interface that matches the specified interface version. This will only
* return the compositor interface if it has already been initialized by the current process. */
virtual class IVRCompositor *GetCurrentCompositorInterface( const char *pchInterfaceVersion ) = 0;
};
static const char * const IVRControlPanel_Version = "IVRControlPanel_001";
}// End
#endif // _OPENVR_API
namespace vr
{
// figure out how to import from the VR API dll
#if defined(_WIN32)
#ifdef VR_API_EXPORT
#define VR_INTERFACE extern "C" __declspec( dllexport )
#else
#define VR_INTERFACE extern "C" __declspec( dllimport )
#endif
#elif defined(GNUC) || defined(COMPILER_GCC)
#ifdef VR_API_EXPORT
#define VR_INTERFACE extern "C" __attribute__((visibility("default")))
#else
#define VR_INTERFACE extern "C"
#endif
#else
#error "Unsupported Platform."
#endif
#if defined( _WIN32 )
#define VR_CALLTYPE __cdecl
#else
#define VR_CALLTYPE
#endif
/** Finds the active installation of the VR API and initializes it. The provided path must be absolute
* or relative to the current working directory. These are the local install versions of the equivalent
* functions in steamvr.h and will work without a local Steam install.
*
* This path is to the "root" of the VR API install. That's the directory with
* the "drivers" directory and a platform (i.e. "win32") directory in it, not the directory with the DLL itself.
*/
VR_INTERFACE vr::IVRSystem *VR_CALLTYPE VR_Init( vr::HmdError *peError );
/** unloads vrclient.dll. Any interface pointers from the interface are
* invalid after this point */
VR_INTERFACE void VR_CALLTYPE VR_Shutdown();
/** Returns true if there is an HMD attached. This check is as lightweight as possible and
* can be called outside of VR_Init/VR_Shutdown. It should be used when an application wants
* to know if initializing VR is a possibility but isn't ready to take that step yet.
*/
VR_INTERFACE bool VR_CALLTYPE VR_IsHmdPresent();
/** Returns the string version of an HMD error. This function may be called outside of VR_Init()/VR_Shutdown(). */
VR_INTERFACE const char *VR_CALLTYPE VR_GetStringForHmdError( vr::HmdError error );
/** Returns the interface of the specified version. This method must be called after VR_Init. The
* pointer returned is valid until VR_Shutdown is called.
*/
VR_INTERFACE void *VR_CALLTYPE VR_GetGenericInterface( const char *pchInterfaceVersion, vr::HmdError *peError );
}
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