diff options
Diffstat (limited to 'include/ingen/InstanceAccess.hpp')
-rw-r--r-- | include/ingen/InstanceAccess.hpp | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/ingen/InstanceAccess.hpp b/include/ingen/InstanceAccess.hpp new file mode 100644 index 00000000..66a2b5c3 --- /dev/null +++ b/include/ingen/InstanceAccess.hpp @@ -0,0 +1,53 @@ +/* + This file is part of Ingen. + Copyright 2007-2015 David Robillard <http://drobilla.net/> + + 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 <http://www.gnu.org/licenses/>. +*/ + +#ifndef INGEN_INSTANCEACCESS_HPP +#define INGEN_INSTANCEACCESS_HPP + +#include <ingen/LV2Features.hpp> +#include <ingen/Node.hpp> +#include <ingen/Store.hpp> +#include <ingen/World.hpp> +#include <lilv/lilv.h> +#include <lv2/core/lv2.h> + +#include <memory> + +namespace ingen { + +struct InstanceAccess : public ingen::LV2Features::Feature { + const char* uri() const override { return "http://lv2plug.in/ns/ext/instance-access"; } + + std::shared_ptr<LV2_Feature> feature(World& world, Node* node) override { + Node* store_node = world.store()->get(node->path()); + if (!store_node) { + return nullptr; + } + + LilvInstance* instance = store_node->instance(); + if (!instance) { + return nullptr; + } + + return std::make_shared<LV2_Feature>( + LV2_Feature{"http://lv2plug.in/ns/ext/instance-access", + lilv_instance_get_handle(instance)}); + } +}; + +} // namespace ingen + +#endif // INGEN_INSTANCEACCESS_HPP |