libcamera: Use the Size class through libcamera

Several of our structures include width and height fields that model a
size while we have a Size class for that purpose. Use the Size class
through libcamera, and give it a toString() method like other geometry
and format classes.

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

1 files changed, 9 insertions, 0 deletions

diff --git a/src/libcamera/geometry.cpp b/src/libcamera/geometry.cpp
index c8aa05f5..97c367bc 100644
--- a/src/libcamera/geometry.cpp
+++ b/src/libcamera/geometry.cpp
@@ -108,6 +108,15 @@ bool operator==(const Rectangle &lhs, const Rectangle &rhs)
  */
 
 /**
+ * \brief Assemble and return a string describing the size
+ * \return A string describing the size
+ */
+const std::string Size::toString() const
+{
+	return std::to_string(width) + "x" + std::to_string(height);
+}
+
+/**
  * \brief Compare sizes for equality
  * \return True if the two sizes are equal, false otherwise
  */