source/libovr/libovrcamera.cpp

   1 #include "libovrcamera.h"
   2 #include "libovrsystem.h"
   3 #include "libovrsystem_private.h"
   4
   5 namespace Msp {
   6 namespace VR {
   7
   8 LibOVRCamera::LibOVRCamera(const LibOVRSystem &d, const GL::Camera &c):
   9         HeadTrackingCamera(c),
  10         device(d)
  11 {
  12         unsigned supported = ovrTrackingCap_Orientation|ovrTrackingCap_MagYawCorrection|ovrTrackingCap_Position;
  13         ovrHmd_ConfigureTracking(device.get_private().ovr_hmd, supported, 0);
  14 }
  15
  16 void LibOVRCamera::reset_tracking()
  17 {
  18         ovrHmd_RecenterPose(device.get_private().ovr_hmd);
  19 }
  20
  21 void LibOVRCamera::update()
  22 {
  23         double time;
  24         if(device.is_timing_active())
  25                 time = device.get_tracking_time();
  26         else
  27                 time = device.get_current_time();
  28
  29         ovrTrackingState state = ovrHmd_GetTrackingState(device.get_private().ovr_hmd, time);
  30         OVR::Posef head_pose = state.HeadPose.ThePose;
  31         OVR::Matrix4f tracking_matrix(head_pose);
  32         update_from_matrix(transpose(GL::Matrix(&tracking_matrix.M[0][0])));
  33 }
  34
  35 } // namespace VR
  36 } // namespace Msp