tracker/rift-{025,042,080}: fix float/double promotions

The change was only read and compile-tested.

1 files changed, 20 insertions, 14 deletions

diff --git a/tracker-rift-080/ftnoir_tracker_rift_080.cpp b/tracker-rift-080/ftnoir_tracker_rift_080.cpp
index d5d6cbd6..c1a07407 100644
--- a/tracker-rift-080/ftnoir_tracker_rift_080.cpp
+++ b/tracker-rift-080/ftnoir_tracker_rift_080.cpp
@@ -6,6 +6,10 @@
 #include "OVR_CAPI_0_8_0.h"
 #include <cstdio>
 
+#ifndef M_PI
+#   define M_PI 3.14159265358979323846
+#endif
+
 using namespace OVR;
 
 Rift_Tracker::Rift_Tracker() : old_yaw(0), hmd(nullptr)
@@ -43,27 +47,29 @@ void Rift_Tracker::data(double *data)
     if (hmd)
     {
         ovrTrackingState ss = ovr_GetTrackingState(hmd, 0, false);
-        if(ss.StatusFlags & ovrStatus_OrientationTracked) {
+        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);
+            double yaw_ = yaw;
             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;
+                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 float d2r = 57.295781f;
-            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;
+            static constexpr double d2r = 180 / M_PI;
+            data[Yaw] = yaw_                   * -d2r;
+            data[Pitch] = double(pitch)        *  d2r;
+            data[Roll] = double(roll)          *  d2r;
+            data[TX] = double(pose.Position.x) * -1e2;
+            data[TY] = double(pose.Position.y) *  1e2;
+            data[TZ] = double(pose.Position.z) *  1e2;
         }
     }
 }