diff options
Diffstat (limited to 'include/libcamera/controls.h')
| -rw-r--r-- | include/libcamera/controls.h | 72 |
1 files changed, 39 insertions, 33 deletions
diff --git a/include/libcamera/controls.h b/include/libcamera/controls.h index 665bcac1..82b95599 100644 --- a/include/libcamera/controls.h +++ b/include/libcamera/controls.h @@ -8,6 +8,7 @@ #pragma once #include <assert.h> +#include <optional> #include <set> #include <stdint.h> #include <string> @@ -98,10 +99,10 @@ public: ControlValue(); #ifndef __DOXYGEN__ - template<typename T, typename std::enable_if_t<!details::is_span<T>::value && - details::control_type<T>::value && - !std::is_same<std::string, std::remove_cv_t<T>>::value, - std::nullptr_t> = nullptr> + template<typename T, std::enable_if_t<!details::is_span<T>::value && + details::control_type<T>::value && + !std::is_same<std::string, std::remove_cv_t<T>>::value, + std::nullptr_t> = nullptr> ControlValue(const T &value) : type_(ControlTypeNone), numElements_(0) { @@ -109,9 +110,9 @@ public: &value, 1, sizeof(T)); } - template<typename T, typename std::enable_if_t<details::is_span<T>::value || - std::is_same<std::string, std::remove_cv_t<T>>::value, - std::nullptr_t> = nullptr> + template<typename T, std::enable_if_t<details::is_span<T>::value || + std::is_same<std::string, std::remove_cv_t<T>>::value, + std::nullptr_t> = nullptr> #else template<typename T> #endif @@ -143,9 +144,9 @@ public: } #ifndef __DOXYGEN__ - template<typename T, typename std::enable_if_t<!details::is_span<T>::value && - !std::is_same<std::string, std::remove_cv_t<T>>::value, - std::nullptr_t> = nullptr> + template<typename T, std::enable_if_t<!details::is_span<T>::value && + !std::is_same<std::string, std::remove_cv_t<T>>::value, + std::nullptr_t> = nullptr> T get() const { assert(type_ == details::control_type<std::remove_cv_t<T>>::value); @@ -154,9 +155,9 @@ public: return *reinterpret_cast<const T *>(data().data()); } - template<typename T, typename std::enable_if_t<details::is_span<T>::value || - std::is_same<std::string, std::remove_cv_t<T>>::value, - std::nullptr_t> = nullptr> + template<typename T, std::enable_if_t<details::is_span<T>::value || + std::is_same<std::string, std::remove_cv_t<T>>::value, + std::nullptr_t> = nullptr> #else template<typename T> #endif @@ -167,22 +168,22 @@ public: using V = typename T::value_type; const V *value = reinterpret_cast<const V *>(data().data()); - return { value, numElements_ }; + return T{ value, numElements_ }; } #ifndef __DOXYGEN__ - template<typename T, typename std::enable_if_t<!details::is_span<T>::value && - !std::is_same<std::string, std::remove_cv_t<T>>::value, - std::nullptr_t> = nullptr> + template<typename T, std::enable_if_t<!details::is_span<T>::value && + !std::is_same<std::string, std::remove_cv_t<T>>::value, + std::nullptr_t> = nullptr> void set(const T &value) { set(details::control_type<std::remove_cv_t<T>>::value, false, reinterpret_cast<const void *>(&value), 1, sizeof(T)); } - template<typename T, typename std::enable_if_t<details::is_span<T>::value || - std::is_same<std::string, std::remove_cv_t<T>>::value, - std::nullptr_t> = nullptr> + template<typename T, std::enable_if_t<details::is_span<T>::value || + std::is_same<std::string, std::remove_cv_t<T>>::value, + std::nullptr_t> = nullptr> #else template<typename T> #endif @@ -267,9 +268,9 @@ private: class ControlInfo { public: - explicit ControlInfo(const ControlValue &min = 0, - const ControlValue &max = 0, - const ControlValue &def = 0); + explicit ControlInfo(const ControlValue &min = {}, + const ControlValue &max = {}, + const ControlValue &def = {}); explicit ControlInfo(Span<const ControlValue> values, const ControlValue &def = {}); explicit ControlInfo(std::set<bool> values, bool def); @@ -351,6 +352,11 @@ private: using ControlListMap = std::unordered_map<unsigned int, ControlValue>; public: + enum class MergePolicy { + KeepExisting = 0, + OverwriteExisting, + }; + ControlList(); ControlList(const ControlIdMap &idmap, const ControlValidator *validator = nullptr); ControlList(const ControlInfoMap &infoMap, const ControlValidator *validator = nullptr); @@ -367,19 +373,19 @@ public: std::size_t size() const { return controls_.size(); } void clear() { controls_.clear(); } - void merge(const ControlList &source); + void merge(const ControlList &source, MergePolicy policy = MergePolicy::KeepExisting); - bool contains(const ControlId &id) const; bool contains(unsigned int id) const; template<typename T> - T get(const Control<T> &ctrl) const + std::optional<T> get(const Control<T> &ctrl) const { - const ControlValue *val = find(ctrl.id()); - if (!val) - return T{}; + const auto entry = controls_.find(ctrl.id()); + if (entry == controls_.end()) + return std::nullopt; - return val->get<T>(); + const ControlValue &val = entry->second; + return val.get<T>(); } template<typename T, typename V> @@ -392,14 +398,14 @@ public: val->set<T>(value); } - template<typename T, typename V> - void set(const Control<T> &ctrl, const std::initializer_list<V> &value) + template<typename T, typename V, size_t Size> + void set(const Control<Span<T, Size>> &ctrl, const std::initializer_list<V> &value) { ControlValue *val = find(ctrl.id()); if (!val) return; - val->set<T>(Span<const typename std::remove_cv_t<V>>{ value.begin(), value.size() }); + val->set(Span<const typename std::remove_cv_t<V>, Size>{ value.begin(), value.size() }); } const ControlValue &get(unsigned int id) const; |