clamp & compare libcamera::Point

src/clamp.cpp

@@ -86,6 +86,17 @@ clamp(const CTRectangle &val, const CTRectangle &lo, const CTRectangle &hi)
 
   return CTRectangle {x, y, width, height};
 }
+
+#if LIBCAMERA_VER_GE(0, 4, 0)
+CTPoint
+clamp(const CTPoint &val, const CTPoint &lo, const CTPoint &hi)
+{
+  const int x = std::clamp(val.x, lo.x, hi.x);
+  const int y = std::clamp(val.y, lo.y, hi.y);
+
+  return CTPoint {x, y};
+}
+#endif
 } // namespace std
 
 
@@ -169,6 +180,28 @@ operator>(const libcamera::Rectangle &lhs, const libcamera::Rectangle &rhs)
          (lhs.y + lhs.height) > (rhs.y + rhs.height);
 }
 
+#if LIBCAMERA_VER_GE(0, 4, 0)
+int
+squared_sum(const libcamera::Point &p)
+{
+  return p.x * p.x + p.y * p.y;
+}
+
+bool
+operator<(const libcamera::Point &lhs, const libcamera::Point &rhs)
+{
+  // check if lhs point is closer to origin than rhs point
+  return squared_sum(lhs) < squared_sum(rhs);
+}
+
+bool
+operator>(const libcamera::Point &lhs, const libcamera::Point &rhs)
+{
+  // check if lhs point is further away from origin than rhs point
+  return squared_sum(lhs) > squared_sum(rhs);
+}
+#endif
+
 template<typename T>
 bool
 less(const libcamera::ControlValue &lhs, const libcamera::ControlValue &rhs)