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-rw-r--r--include/libcamera/controls.h14
-rw-r--r--src/libcamera/control_ids.cpp.in4
-rw-r--r--src/libcamera/controls.cpp15
3 files changed, 26 insertions, 7 deletions
diff --git a/include/libcamera/controls.h b/include/libcamera/controls.h
index 7c2bb287..96a774cc 100644
--- a/include/libcamera/controls.h
+++ b/include/libcamera/controls.h
@@ -8,6 +8,7 @@
#pragma once
#include <assert.h>
+#include <map>
#include <optional>
#include <set>
#include <stdint.h>
@@ -213,14 +214,13 @@ private:
class ControlId
{
public:
- ControlId(unsigned int id, const std::string &name, ControlType type)
- : id_(id), name_(name), type_(type)
- {
- }
+ ControlId(unsigned int id, const std::string &name, ControlType type,
+ const std::map<std::string, int32_t> &enumStrMap = {});
unsigned int id() const { return id_; }
const std::string &name() const { return name_; }
ControlType type() const { return type_; }
+ const std::map<int32_t, std::string> &enumerators() const { return reverseMap_; }
private:
LIBCAMERA_DISABLE_COPY_AND_MOVE(ControlId)
@@ -228,6 +228,8 @@ private:
unsigned int id_;
std::string name_;
ControlType type_;
+ std::map<std::string, int32_t> enumStrMap_;
+ std::map<int32_t, std::string> reverseMap_;
};
static inline bool operator==(unsigned int lhs, const ControlId &rhs)
@@ -256,8 +258,8 @@ class Control : public ControlId
public:
using type = T;
- Control(unsigned int id, const char *name)
- : ControlId(id, name, details::control_type<std::remove_cv_t<T>>::value)
+ Control(unsigned int id, const char *name, const std::map<std::string, int32_t> &enumStrMap = {})
+ : ControlId(id, name, details::control_type<std::remove_cv_t<T>>::value, enumStrMap)
{
}
diff --git a/src/libcamera/control_ids.cpp.in b/src/libcamera/control_ids.cpp.in
index 05c8fb38..3a204931 100644
--- a/src/libcamera/control_ids.cpp.in
+++ b/src/libcamera/control_ids.cpp.in
@@ -89,8 +89,10 @@ extern const std::map<std::string, {{ctrl.type}}> {{ctrl.name}}NameValueMap = {
{ "{{enum.name}}", {{enum.name}} },
{%- endfor %}
};
-{% endif -%}
+extern const Control<{{ctrl.type}}> {{ctrl.name}}({{ctrl.name|snake_case|upper}}, "{{ctrl.name}}", {{ctrl.name}}NameValueMap);
+{% else -%}
extern const Control<{{ctrl.type}}> {{ctrl.name}}({{ctrl.name|snake_case|upper}}, "{{ctrl.name}}");
+{% endif -%}
{%- endfor %}
{% if vendor != 'libcamera' %}
diff --git a/src/libcamera/controls.cpp b/src/libcamera/controls.cpp
index dba74404..a46c431a 100644
--- a/src/libcamera/controls.cpp
+++ b/src/libcamera/controls.cpp
@@ -389,7 +389,15 @@ void ControlValue::reserve(ControlType type, bool isArray, std::size_t numElemen
* \param[in] id The control numerical ID
* \param[in] name The control name
* \param[in] type The control data type
+ * \param[in] enumStrMap The map from enum names to values (optional)
*/
+ControlId::ControlId(unsigned int id, const std::string &name, ControlType type,
+ const std::map<std::string, int32_t> &enumStrMap)
+ : id_(id), name_(name), type_(type), enumStrMap_(enumStrMap)
+{
+ for (const auto &pair : enumStrMap_)
+ reverseMap_[pair.second] = pair.first;
+}
/**
* \fn unsigned int ControlId::id() const
@@ -410,6 +418,12 @@ void ControlValue::reserve(ControlType type, bool isArray, std::size_t numElemen
*/
/**
+ * \fn const std::map<int32_t, std::string> &ControlId::enumerators() const
+ * \brief Retrieve the map of enum values to enum names
+ * \return The map of enum values to enum names
+ */
+
+/**
* \fn bool operator==(unsigned int lhs, const ControlId &rhs)
* \brief Compare a ControlId with a control numerical ID
* \param[in] lhs Left-hand side numerical ID
@@ -459,6 +473,7 @@ void ControlValue::reserve(ControlType type, bool isArray, std::size_t numElemen
* \brief Construct a Control instance
* \param[in] id The control numerical ID
* \param[in] name The control name
+ * \param[in] enumStrMap The map from enum names to values (optional)
*
* The control data type is automatically deduced from the template type T.
*/