Carla/source/backend/engine/CarlaEngineClient.cpp

/*
 * Carla Plugin Host
 * Copyright (C) 2011-2014 Filipe Coelho <falktx@falktx.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or any later version.
 *
 * This program 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 General Public License for more details.
 *
 * For a full copy of the GNU General Public License see the doc/GPL.txt file.
 */

#include "CarlaEngineInternal.hpp"
#include "CarlaEngineUtils.hpp"

// -----------------------------------------------------------------------

CARLA_BACKEND_START_NAMESPACE

#if 0
} // Fix editor indentation
#endif

// -----------------------------------------------------------------------
// Carla Engine client (Abstract)

CarlaEngineClient::CarlaEngineClient(const CarlaEngine& engine)
    : fEngine(engine),
      fActive(false),
      fLatency(0)
{
    carla_debug("CarlaEngineClient::CarlaEngineClient()");
}

CarlaEngineClient::~CarlaEngineClient()
{
    CARLA_SAFE_ASSERT(! fActive);
    carla_debug("CarlaEngineClient::~CarlaEngineClient()");
}

void CarlaEngineClient::activate() noexcept
{
    CARLA_SAFE_ASSERT(! fActive);
    carla_debug("CarlaEngineClient::activate()");

    fActive = true;
}

void CarlaEngineClient::deactivate() noexcept
{
    CARLA_SAFE_ASSERT(fActive);
    carla_debug("CarlaEngineClient::deactivate()");

    fActive = false;
}

bool CarlaEngineClient::isActive() const noexcept
{
    return fActive;
}

bool CarlaEngineClient::isOk() const noexcept
{
    return true;
}

uint32_t CarlaEngineClient::getLatency() const noexcept
{
    return fLatency;
}

void CarlaEngineClient::setLatency(const uint32_t samples) noexcept
{
    fLatency = samples;
}

CarlaEnginePort* CarlaEngineClient::addPort(const EnginePortType portType, const char* const name, const bool isInput) /*noexcept*/
{
    CARLA_SAFE_ASSERT_RETURN(name != nullptr && name[0] != '\0', nullptr);
    carla_debug("CarlaEngineClient::addPort(%i:%s, \"%s\", %s)", portType, EnginePortType2Str(portType), name, bool2str(isInput));

    CarlaEnginePort* ret = nullptr;

    try {
        switch (portType)
        {
        case kEnginePortTypeNull:
            break;
        case kEnginePortTypeAudio:
            ret = new CarlaEngineAudioPort(fEngine, isInput);
        case kEnginePortTypeCV:
            ret = new CarlaEngineCVPort(fEngine, isInput);
        case kEnginePortTypeEvent:
            ret = new CarlaEngineEventPort(fEngine, isInput);
        }
    }
    catch(...) {
        return nullptr;
    }

    if (ret != nullptr)
        return ret;

    carla_stderr("CarlaEngineClient::addPort(%i, \"%s\", %s) - invalid type", portType, name, bool2str(isInput));
    return nullptr;
}

// -----------------------------------------------------------------------

CARLA_BACKEND_END_NAMESPACE