debug_controls.h

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2024, Google Inc.
 *
 * Debug metadata helpers
 */
 
#pragma once
 
#include <libcamera/control_ids.h>
 
namespace libcamera {
 
class DebugMetadata
{
public:
    DebugMetadata() = default;
 
    void enableByControl(const ControlList &controls);
    void enable(bool enable = true);
    void setParent(DebugMetadata *parent);
    void moveEntries(ControlList &list);
 
    template<typename T, typename V>
    void set(const Control<T> &ctrl, const V &value)
    {
        if (parent_) {
            parent_->set(ctrl, value);
            return;
        }
 
        if (!enabled_)
            return;
 
        cache_.set(ctrl, value);
    }
 
    void set(unsigned int id, const ControlValue &value);
 
private:
    bool enabled_ = false;
    DebugMetadata *parent_ = nullptr;
    ControlList cache_;
};
 
} /* namespace libcamera */