tracker/pt: no need for 4-byte command mask

1 files changed, 3 insertions, 3 deletions

diff --git a/tracker-pt/ftnoir_tracker_pt.h b/tracker-pt/ftnoir_tracker_pt.h
index 6a889f13..b6815bd7 100644
--- a/tracker-pt/ftnoir_tracker_pt.h
+++ b/tracker-pt/ftnoir_tracker_pt.h
@@ -49,7 +49,8 @@ protected:
     void run() override;
 private:
     // thread commands
-    enum Command {
+    enum Command : unsigned char
+    {
         ABORT = 1<<0
     };
     void set_command(Command command);
@@ -57,8 +58,6 @@ private:
 
     bool get_focal_length(float &ret);
 
-    volatile int commands;
-
     QMutex camera_mtx;
     CVCamera       camera;
     PointExtractor point_extractor;
@@ -72,6 +71,7 @@ private:
     cv::Mat frame;
 
     volatile bool ever_success;
+    volatile unsigned char commands;
 
     static constexpr float rad2deg = float(180/3.14159265);
     //static constexpr float deg2rad = float(3.14159265/180);