mpadapter.cpp

//
//    openSAM: open source SAM emulator for X Plane
//
//    Copyright (C) 2025, 2026  Holger Teutsch
//
//    This library is free software; you can redistribute it and/or
//    modify it under the terms of the GNU Lesser General Public
//    License as published by the Free Software Foundation; either
//    version 2.1 of the License, or (at your option) any later version.
//
//    This library is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//    Lesser General Public License for more details.
//
//    You should have received a copy of the GNU Lesser General Public
//    License along with this library; if not, write to the Free Software
//    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
//    USA
//

#include <cassert>
#include "openSAM.h"
#include "plane.h"

#include "mpadapter.h"
#include "mpadapter_xpilot.h"
#include "mpadapter_tgxp.h"
#include "mpadapter_lt.h"

static bool active;

MpAdapter::~MpAdapter() {
    mp_planes_.clear();
    active = false;
}

std::unique_ptr<MpAdapter> MpAdapter_factory() {
    // ensure that we only have one active adapter
    assert(!active);

    std::unique_ptr<MpAdapter> adapter;

    if (MpAdapter_xPilot::probe())
        adapter = std::unique_ptr<MpAdapter>(new MpAdapter_xPilot());
    else if (MpAdapter_lt::probe())
        adapter = std::unique_ptr<MpAdapter>(new MpAdapter_lt());
    else if (MpAdapter_tgxp::probe())
        adapter = std::unique_ptr<MpAdapter>(new MpAdapter_tgxp());

    active = (adapter != nullptr);
    return adapter;
}

float MpAdapter::JwStateMachine() {
    float jw_loop_delay = 10.0;
    for (auto& p : mp_planes_)
        jw_loop_delay = std::min(p.second->JwStateMachine(), jw_loop_delay);
    return jw_loop_delay;
}