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Diffstat (limited to 'src/engine/events/Connection.cpp')
| -rw-r--r-- | src/engine/events/Connection.cpp | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/engine/events/Connection.cpp b/src/engine/events/Connection.cpp new file mode 100644 index 00000000..08ba49d5 --- /dev/null +++ b/src/engine/events/Connection.cpp @@ -0,0 +1,204 @@ +/* This file is part of Ingen. + * Copyright (C) 2007-2009 Dave Robillard <http://drobilla.net> + * + * Ingen 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 (at your option) 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 General Public License for details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <string> +#include <boost/format.hpp> +#include "raul/Maid.hpp" +#include "raul/Path.hpp" +#include "ClientBroadcaster.hpp" +#include "Connection.hpp" +#include "ConnectionImpl.hpp" +#include "Engine.hpp" +#include "InputPort.hpp" +#include "EngineStore.hpp" +#include "OutputPort.hpp" +#include "PatchImpl.hpp" +#include "PortImpl.hpp" +#include "Responder.hpp" +#include "types.hpp" + +using namespace std; +using namespace Raul; + +namespace Ingen { + +using namespace Shared; + + +ConnectionEvent::ConnectionEvent(Engine& engine, SharedPtr<Responder> responder, SampleCount timestamp, const Path& src_port_path, const Path& dst_port_path) + : QueuedEvent(engine, responder, timestamp) + , _src_port_path(src_port_path) + , _dst_port_path(dst_port_path) + , _patch(NULL) + , _src_port(NULL) + , _dst_port(NULL) + , _compiled_patch(NULL) + , _patch_listnode(NULL) + , _port_listnode(NULL) + , _error(NO_ERROR) +{ +} + + +void +ConnectionEvent::pre_process() +{ + if (_src_port_path.parent().parent() != _dst_port_path.parent().parent() + && _src_port_path.parent() != _dst_port_path.parent().parent() + && _src_port_path.parent().parent() != _dst_port_path.parent()) { + _error = PARENT_PATCH_DIFFERENT; + QueuedEvent::pre_process(); + return; + } + + _src_port = _engine.engine_store()->find_port(_src_port_path); + _dst_port = _engine.engine_store()->find_port(_dst_port_path); + + if (_src_port == NULL || _dst_port == NULL) { + _error = PORT_NOT_FOUND; + QueuedEvent::pre_process(); + return; + } + + if ( ! (_src_port->type() == _dst_port->type() + || ( (_src_port->type() == DataType::CONTROL || _src_port->type() == DataType::AUDIO) + && (_dst_port->type() == DataType::CONTROL || _dst_port->type() == DataType::AUDIO) ))) { + _error = TYPE_MISMATCH; + QueuedEvent::pre_process(); + return; + } + + _dst_input_port = dynamic_cast<InputPort*>(_dst_port); + _src_output_port = dynamic_cast<OutputPort*>(_src_port); + + if (!_dst_input_port || !_src_output_port) { + _error = DIRECTION_MISMATCH; + QueuedEvent::pre_process(); + return; + } + + NodeImpl* const src_node = _src_port->parent_node(); + NodeImpl* const dst_node = _dst_port->parent_node(); + + // Connection to a patch port from inside the patch + if (src_node->parent_patch() != dst_node->parent_patch()) { + + assert(src_node->parent() == dst_node || dst_node->parent() == src_node); + if (src_node->parent() == dst_node) + _patch = dynamic_cast<PatchImpl*>(dst_node); + else + _patch = dynamic_cast<PatchImpl*>(src_node); + + // Connection from a patch input to a patch output (pass through) + } else if (src_node == dst_node && dynamic_cast<PatchImpl*>(src_node)) { + _patch = dynamic_cast<PatchImpl*>(src_node); + + // Normal connection between nodes with the same parent + } else { + _patch = src_node->parent_patch(); + } + + assert(_patch); + + if (_patch->has_connection(_src_output_port, _dst_input_port)) { + _error = ALREADY_CONNECTED; + QueuedEvent::pre_process(); + return; + } + + if (src_node == NULL || dst_node == NULL) { + _error = PARENTS_NOT_FOUND; + QueuedEvent::pre_process(); + return; + } + + if (_patch != src_node && src_node->parent() != _patch && dst_node->parent() != _patch) { + _error = PARENTS_NOT_FOUND; + QueuedEvent::pre_process(); + return; + } + + _connection = SharedPtr<ConnectionImpl>(new ConnectionImpl(_src_port, _dst_port)); + _patch_listnode = new PatchImpl::Connections::Node(_connection); + _port_listnode = new InputPort::Connections::Node(_connection); + + // Need to be careful about patch port connections here and adding a node's + // parent as a dependant/provider, or adding a patch as it's own provider... + if (src_node != dst_node && src_node->parent() == dst_node->parent()) { + dst_node->providers()->push_back(new Raul::List<NodeImpl*>::Node(src_node)); + src_node->dependants()->push_back(new Raul::List<NodeImpl*>::Node(dst_node)); + } + + _patch->add_connection(_patch_listnode); + + if (_patch->enabled()) + _compiled_patch = _patch->compile(); + + QueuedEvent::pre_process(); +} + + +void +ConnectionEvent::execute(ProcessContext& context) +{ + QueuedEvent::execute(context); + + if (_error == NO_ERROR) { + // This must be inserted here, since they're actually used by the audio thread + _dst_input_port->add_connection(_port_listnode); + if (_patch->compiled_patch() != NULL) + _engine.maid()->push(_patch->compiled_patch()); + _patch->compiled_patch(_compiled_patch); + } +} + + +void +ConnectionEvent::post_process() +{ + std::ostringstream ss; + if (_error == NO_ERROR) { + _responder->respond_ok(); + _engine.broadcaster()->send_connection(_connection); + return; + } + + ss << boost::format("Unable to make connection %1% -> %2% (") % _src_port_path % _dst_port_path; + + switch (_error) { + case PARENT_PATCH_DIFFERENT: + ss << "Ports have mismatched parents"; break; + case PORT_NOT_FOUND: + ss << "Port not found"; break; + case TYPE_MISMATCH: + ss << "Type mismatch"; break; + case DIRECTION_MISMATCH: + ss << "Direction mismatch"; break; + case ALREADY_CONNECTED: + ss << "Already connected"; break; + case PARENTS_NOT_FOUND: + ss << "Parents not found"; break; + default: + ss << "Unknown error"; + } + ss << ")"; + _responder->respond_error(ss.str()); +} + + +} // namespace Ingen + |