libcamera: geometry: Add Size structure

Add a simple Size structure that contains an image width and height.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>

src/libcamera/include/geometry.h

@@ -40,6 +40,21 @@ struct SizeRange {
 	unsigned int maxHeight;
 };
 
+struct Size {
+	Size()
+		: Size(0, 0)
+	{
+	}
+
+	Size(unsigned int w, unsigned int h)
+		: width(w), height(h)
+	{
+	}
+
+	unsigned int width;
+	unsigned int height;
+};
+
 } /* namespace libcamera */
 
 #endif /* __LIBCAMERA_GEOMETRY_H__ */