dd37ef784e
Make the control API more explicit when dealing with integer controls by specifying the size. We already do so for 64-bit integers, using int64_t and ControlTypeInteger64, do the same for 32-bit integers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
136 lines
3.0 KiB
C++
136 lines
3.0 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* controls.h - Control handling
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*/
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#ifndef __LIBCAMERA_CONTROLS_H__
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#define __LIBCAMERA_CONTROLS_H__
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#include <stdint.h>
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#include <string>
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#include <unordered_map>
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#include <libcamera/control_ids.h>
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namespace libcamera {
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class Camera;
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enum ControlType {
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ControlTypeNone,
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ControlTypeBool,
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ControlTypeInteger32,
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ControlTypeInteger64,
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};
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class ControlValue
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{
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public:
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ControlValue();
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ControlValue(bool value);
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ControlValue(int32_t value);
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ControlValue(int64_t value);
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ControlType type() const { return type_; };
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bool isNone() const { return type_ == ControlTypeNone; };
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template<typename T>
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const T &get() const;
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template<typename T>
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void set(const T &value);
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std::string toString() const;
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private:
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ControlType type_;
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union {
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bool bool_;
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int32_t integer32_;
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int64_t integer64_;
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};
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};
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struct ControlIdentifier {
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ControlId id;
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const char *name;
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ControlType type;
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};
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class ControlInfo
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{
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public:
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explicit ControlInfo(ControlId id, const ControlValue &min = 0,
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const ControlValue &max = 0);
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ControlId id() const { return ident_->id; }
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const char *name() const { return ident_->name; }
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ControlType type() const { return ident_->type; }
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const ControlValue &min() const { return min_; }
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const ControlValue &max() const { return max_; }
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std::string toString() const;
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private:
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const struct ControlIdentifier *ident_;
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ControlValue min_;
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ControlValue max_;
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};
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bool operator==(const ControlInfo &lhs, const ControlInfo &rhs);
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bool operator==(const ControlId &lhs, const ControlInfo &rhs);
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bool operator==(const ControlInfo &lhs, const ControlId &rhs);
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static inline bool operator!=(const ControlInfo &lhs, const ControlInfo &rhs)
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{
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return !(lhs == rhs);
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}
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static inline bool operator!=(const ControlId &lhs, const ControlInfo &rhs)
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{
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return !(lhs == rhs);
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}
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static inline bool operator!=(const ControlInfo &lhs, const ControlId &rhs)
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{
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return !(lhs == rhs);
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}
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using ControlInfoMap = std::unordered_map<ControlId, ControlInfo>;
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class ControlList
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{
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private:
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using ControlListMap = std::unordered_map<const ControlInfo *, ControlValue>;
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public:
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ControlList(Camera *camera);
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using iterator = ControlListMap::iterator;
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using const_iterator = ControlListMap::const_iterator;
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iterator begin() { return controls_.begin(); }
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iterator end() { return controls_.end(); }
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const_iterator begin() const { return controls_.begin(); }
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const_iterator end() const { return controls_.end(); }
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bool contains(ControlId id) const;
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bool contains(const ControlInfo *info) const;
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bool empty() const { return controls_.empty(); }
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std::size_t size() const { return controls_.size(); }
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void clear() { controls_.clear(); }
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ControlValue &operator[](ControlId id);
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ControlValue &operator[](const ControlInfo *info) { return controls_[info]; }
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void update(const ControlList &list);
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private:
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Camera *camera_;
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ControlListMap controls_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_CONTROLS_H__ */
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