libcamera: geometry: Add 0-initialized SizeRange constructor

Add constructor to SizeRange which initialize all the size range fields
to 0.

While at there make the in-line constructor declarations respect the
coding style by moving braces to a new line.

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/geometry.cpp

@@ -73,7 +73,16 @@ const std::string Rectangle::toString() const
 
 /**
  * \fn SizeRange::SizeRange()
- * \brief Construct a size range
+ * \brief Construct a size range initialized to 0
+ */
+
+/**
+ * \fn SizeRange::SizeRange(unsigned int minW, unsigned int minH, unsigned int maxW, unsigned int maxH)
+ * \brief Construct an initialized size range
+ * \param minW The minimum width
+ * \param minH The minimum height
+ * \param maxW The maximum width
+ * \param maxH The maximum height
  */
 
 /**

src/libcamera/include/geometry.h

@@ -22,10 +22,17 @@ struct Rectangle {
 };
 
 struct SizeRange {
+	SizeRange()
+		: SizeRange(0, 0, 0, 0)
+	{
+	}
+
 	SizeRange(unsigned int minW, unsigned int minH,
 		  unsigned int maxW, unsigned int maxH)
 		: minWidth(minW), minHeight(minH), maxWidth(maxW),
-		  maxHeight(maxH) {}
+		  maxHeight(maxH)
+	{
+	}
 
 	unsigned int minWidth;
 	unsigned int minHeight;