libcamera: geometry: Add two-point Rectangle constructor

Add a constructor to the Rectangle class that accepts two points.

The constructed Rectangle spans all the space between the two given
points.

Signed-off-by: Yudhistira Erlandinata <yerlandinata@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Harvey Yang <chenghaoyang@chromium.org>

include/libcamera/geometry.h

@@ -262,6 +262,15 @@ public:
 	{
 	}
 
+	constexpr Rectangle(const Point &point1, const Point &point2)
+		: Rectangle(std::min(point1.x, point2.x), std::min(point1.y, point2.y),
+			    static_cast<unsigned int>(std::max(point1.x, point2.x)) -
+			    static_cast<unsigned int>(std::min(point1.x, point2.x)),
+			    static_cast<unsigned int>(std::max(point1.y, point2.y)) -
+			    static_cast<unsigned int>(std::min(point1.y, point2.y)))
+	{
+	}
+
 	int x;
 	int y;
 	unsigned int width;