/* This file is part of Ingen. Copyright 2007-2015 David Robillard Ingen is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or any later version. Ingen 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 Affero General Public License for details. You should have received a copy of the GNU Affero General Public License along with Ingen. If not, see . */ #ifndef INGEN_ENGINE_INSTANCEACCESS_HPP #define INGEN_ENGINE_INSTANCEACCESS_HPP #include "ingen/LV2Features.hpp" #include "ingen/Store.hpp" #include "ingen/World.hpp" namespace Ingen { struct InstanceAccess : public Ingen::LV2Features::Feature { const char* uri() const { return "http://lv2plug.in/ns/ext/instance-access"; } SPtr feature(World* world, Node* node) { if (!world->engine()) { return SPtr(); } Node* store_node = world->store()->get(node->path()); if (!store_node) { return SPtr(); } LilvInstance* instance = world->engine()->block_instance(store_node); if (!instance) { return SPtr(); } return SPtr( new LV2_Feature{ "http://lv2plug.in/ns/ext/instance-access", lilv_instance_get_handle(instance) }); } }; } // namespace Ingen #endif // INGEN_ENGINE_INSTANCEACCESS_HPP