Method Init

samples/drivers/drivers/simplecontroller/src/device_provider.cpp:10–48

----------------------------------------------------------------------------- Purpose: This is called by vrserver after it receives a pointer back from HmdDriverFactory. You should do your resources allocations here (**not** in the constructor). -----------------------------------------------------------------------------

// You should do your resources allocations here (**not** in the constructor).
//-----------------------------------------------------------------------------
vr::EVRInitError MyDeviceProvider::Init( vr::IVRDriverContext *pDriverContext )
{
	// We need to initialise our driver context to make calls to the server.
	// OpenVR provides a macro to do this for us.
	VR_INIT_SERVER_DRIVER_CONTEXT( pDriverContext );

	// Let's add our controllers to the system.
	// First, we need to actually instantiate our controller devices.
	// We made the constructor take in a controller role, so let's pass their respective roles in.
	my_left_controller_device_ = std::make_unique< MyControllerDeviceDriver >( vr::TrackedControllerRole_LeftHand );
	my_right_controller_device_ = std::make_unique< MyControllerDeviceDriver >( vr::TrackedControllerRole_RightHand );

	// Now we need to tell vrserver about our controllers.
	// The first argument is the serial number of the device, which must be unique across all devices.
	// We get it from our driver settings when we instantiate,
	// And can pass it out of the function with MyGetSerialNumber().
	// Let's add the left hand controller first (there isn't a specific order).
	// make sure we actually managed to create the device.
	// TrackedDeviceAdded returning true means we have had our device added to SteamVR.
	if ( !vr::VRServerDriverHost()->TrackedDeviceAdded( my_left_controller_device_->MyGetSerialNumber().c_str(), vr::TrackedDeviceClass_Controller, my_left_controller_device_.get() ) )
	{
		DriverLog( "Failed to create left controller device!" );
		// We failed? Return early.
		return vr::VRInitError_Driver_Unknown;
	}


	// Now, the right hand
	// Make sure we actually managed to create the device.
	// TrackedDeviceAdded returning true means we have had our device added to SteamVR.
	if ( !vr::VRServerDriverHost()->TrackedDeviceAdded( my_right_controller_device_->MyGetSerialNumber().c_str(), vr::TrackedDeviceClass_Controller, my_right_controller_device_.get() ) )
	{
		DriverLog( "Failed to create right controller device!" );
		// We failed? Return early.
		return vr::VRInitError_Driver_Unknown;
	}

	return vr::VRInitError_None;
}

//-----------------------------------------------------------------------------
// Purpose: Tells the runtime which version of the API we are targeting.