1 files changed, 71 insertions, 0 deletions
diff --git a/tracker-rift-042/ftnoir_tracker_rift_042.cpp b/tracker-rift-042/ftnoir_tracker_rift_042.cpp
new file mode 100644
index 00000000..deea4a08
--- /dev/null
+++ b/tracker-rift-042/ftnoir_tracker_rift_042.cpp
@@ -0,0 +1,71 @@
+/* Copyright: "i couldn't care less what anyone does with the 5 lines of code i wrote" - mm0zct */
+#include "ftnoir_tracker_rift_042.h"
+#include "opentrack/plugin-api.hpp"
+#include "OVR_CAPI.h"
+#include "Kernel/OVR_Math.h"
+#include <cstdio>
+
+using namespace OVR;
+
+Rift_Tracker::Rift_Tracker() : old_yaw(0), hmd(nullptr)
+{
+}
+
+Rift_Tracker::~Rift_Tracker()
+{
+    ovrHmd_Destroy(hmd);
+    ovr_Shutdown();
+}
+
+void Rift_Tracker::start_tracker(QFrame*)
+{
+    ovr_Initialize();
+    hmd = ovrHmd_Create(0);
+    if (hmd)
+    {
+        ovrHmd_ConfigureTracking(hmd, ovrTrackingCap_Orientation | ovrTrackingCap_MagYawCorrection | ovrTrackingCap_Position, ovrTrackingCap_Orientation);
+    }
+    else
+    {
+        // XXX need change ITracker et al api to allow for failure reporting
+        // this qmessagebox doesn't give any relevant details either -sh 20141012
+        QMessageBox::warning(0,"Error", "Unable to start Rift tracker",QMessageBox::Ok,QMessageBox::NoButton);
+    }
+}
+
+
+void Rift_Tracker::data(double *data)
+{
+    if (hmd)
+    {
+	ovrHSWDisplayState hsw;	
+	if (ovrHmd_GetHSWDisplayState(hmd, &hsw), hsw.Displayed)
+            ovrHmd_DismissHSWDisplay(hmd);
+        ovrTrackingState ss = ovrHmd_GetTrackingState(hmd, 0);
+        if(ss.StatusFlags & ovrStatus_OrientationTracked) {
+            auto pose = ss.HeadPose.ThePose;
+            Quatf quat = pose.Orientation;
+            float yaw, pitch, roll;
+            quat.GetEulerAngles<Axis_Y, Axis_X, Axis_Z>(&yaw, &pitch, &roll);
+            // XXX TODO move to core
+            if (s.useYawSpring)
+            {
+                yaw = old_yaw*s.persistence + (yaw-old_yaw);
+                if(yaw > s.deadzone)
+                    yaw -= s.constant_drift;
+                if(yaw < -s.deadzone)
+                    yaw += s.constant_drift;
+                old_yaw=yaw;
+            }
+            constexpr double d2r = 57.295781;
+            data[Yaw] = yaw * -d2r;
+            data[Pitch] = pitch * d2r;
+            data[Roll] = roll * d2r;
+            data[TX] = pose.Position.x * -1e2;
+            data[TY] = pose.Position.y *  1e2;
+            data[TZ] = pose.Position.z *  1e2;
+        }
+    }
+}
+
+OPENTRACK_DECLARE_TRACKER(Rift_Tracker, TrackerControls, FTNoIR_TrackerDll)