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 */