libcamera: controls: Move ControlValue constructor to controls.h

To avoid defining all specializations of the ControlValue constructor
manually, move the definition of those functions to controls.h and turn
them into a single template function. The default constructor is still
kept in controls.cpp.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/include/libcamera/controls.h b/include/libcamera/controls.h
index 39e24043..dfe69916 100644
--- a/include/libcamera/controls.h
+++ b/include/libcamera/controls.h
@@ -55,9 +55,13 @@ class ControlValue
 {
 public:
 	ControlValue();
-	ControlValue(bool value);
-	ControlValue(int32_t value);
-	ControlValue(int64_t value);
+
+	template<typename T>
+	ControlValue(T value)
+		: type_(details::control_type<std::remove_cv_t<T>>::value)
+	{
+		*reinterpret_cast<T *>(&bool_) = value;
+	}
 
 	ControlType type() const { return type_; }
 	bool isNone() const { return type_ == ControlTypeNone; }