[libcamera-devel] [PATCH v3 04/14] libcamera: controls: Construct from values list

[Jacopo Mondi]

Add two constructors to the ControlInfo class that allows creating
a class instance from the list of the control supported values with
an optional default value.

Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>
---
 include/libcamera/controls.h |  3 +++
 src/libcamera/controls.cpp   | 31 +++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/include/libcamera/controls.h b/include/libcamera/controls.h
index d1f6d4490c35..0099b6329026 100644
--- a/include/libcamera/controls.h
+++ b/include/libcamera/controls.h
@@ -269,6 +269,9 @@ public:
 			     const ControlValue &max = 0,
 			     const ControlValue &def = 0,
 			     const std::vector<ControlValue> &values = {});
+	explicit ControlInfo(const std::vector<ControlValue> &values,
+			     const ControlValue &def);
+	explicit ControlInfo(const std::vector<ControlValue> &values);
 
 	const ControlValue &min() const { return min_; }
 	const ControlValue &max() const { return max_; }
diff --git a/src/libcamera/controls.cpp b/src/libcamera/controls.cpp
index 61feee37a1b8..389ecd5c519c 100644
--- a/src/libcamera/controls.cpp
+++ b/src/libcamera/controls.cpp
@@ -493,6 +493,37 @@ ControlInfo::ControlInfo(const ControlValue &min,
 {
 }
 
+/**
+ * \brief Construct a ControlInfo from the list of supported values and a default
+ * \param[in] values The control supported values
+ * \param[in] def The control default value
+ *
+ * Construct a ControlInfo from a list of supported values. The ControlInfo
+ * minimum and maximum values are assigned to the first and last members of
+ * the values list respectively.
+ */
+ControlInfo::ControlInfo(const std::vector<ControlValue> &values,
+			 const ControlValue &def)
+	: def_(def), values_(values)
+{
+	min_ = values_.front();
+	max_ = values_.back();
+}
+
+/**
+ * \brief Construct a ControlInfo from the list of supported values
+ * \param[in] values The control supported values
+ *
+ * Construct a ControlInfo from a list of supported values. The ControlInfo
+ * minimum and maximum values are assigned to the first and last members of
+ * the values list respectively. The ControlInfo default value is set to be
+ * equal to the minimum one.
+ */
+ControlInfo::ControlInfo(const std::vector<ControlValue> &values)
+	: ControlInfo(values, values.front())
+{
+}
+
 /**
  * \fn ControlInfo::min()
  * \brief Retrieve the minimum value of the control
-- 
2.28.0